Area Code 301 has 781 prefixes. Broadwing Communications. Llc - Md. Browse area code 301 phone numbers, prefixes and exchanges. The 301 area code serves Washington, Beltsville, Silver Spring, Hyattsville, Hagerstown, covering 95 ZIP codes in 16 counties. The Federal Trade Commission previously linked these area codes to the scam: 268, 284, 473, 664, 649, 767, 809, 829, 849 and 876. Bottom line: If you receive an unexpected call or text from an area code you don’t recognize, don’t answer it. Do a Google search to see where the number is registered. If it’s someone you know, they’ll call ...Area Codes Search Notes. Fixed phone numbers in Argentina are comprised of a single country code (+54), a 1-5 digit area code, a 2-7 digit region code, and a 30-80 digit line code. Making a call with the wrong country, area, or region code can be costly. Browse our sites area and region codes by region and city to ensure you have the correct …Mar 28, 2024 · Here are examples of three of the most common scams out there today and how to block these spam calls. 1. One-Ring Scams. Scammers use one-ring scams to get you, the victim, to call back. The scammers use robo-dialers to call you and hang up after just one ring. City Data. Browse Phone Numbers by Prefix. Our database includes 678 area code 301 prefixes with phone numbers: Area Code 301 Information. Area code 301 belongs to …Extended search being performed may take a significant time so a forking proxy must send a 100 Trying response. [1] : §21.1.1. 180 Ringing. Destination user agent received INVITE, and is alerting user of call. [1] : §21.1.2. 181 Call is Being Forwarded. Servers can optionally send this response to indicate a call is being forwarded. [1 ... In 1997 area codes 301 was overlaid with area code 240. Area code 227 was put into service as a distributed overlay of area codes 240 and 301 in Maryland on 06/14/23. Ten digit dialing (area code + seven digit number) is necessary in the 227/240/301 overlay because different homes in the same geographic area can have the same seven digit phone ... Area codes are three-digit numbers that represent Numbering Plan Areas (NPAs). The area code for a particular city or region is the series of numbers that you have to dial before someone’s number if you are making a phone call to that place from a different area. Area code 301 serves the state of Maryland. Phone numbers in the 301 area code can be found in 86 cities or locations. Those phone numbers can be found in the following cities or locations: Accident, Adamstown, Annapolis, Ashton, Avenue, Baltimore, Beltsville, Bethesda, Bittinger, Bowie, Brandywine, Brunswick, Bryans Road, Cabin John, ...Access codes. Country code. +675. International access. 00. Long-distance. None. Telephone numbers in Papua New Guinea consist of mostly seven and some eight digit numbers (fixed), or eight digit numbers (mobile). The international prefix for Papua New Guinea was changed from ‘05’ to ’00’ in 2010. What Is Area Code 301? 301 is a Maryland telephone area code. It was one of the original area codes established in 1947. The area code covers the northwestern suburbs of Washington, D.C., including Montgomery County and most of Prince George's County. Area code 301 serves the state of Maryland. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 301 is a General Purpose Code. 301 service area does overlap with 240 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D. City Data. Browse Phone Numbers by Prefix. Our database includes 678 area code 301 prefixes with phone numbers: Area Code 301 Information. Area code 301 belongs to …Find locations of telephone numbers. Detailed Location Information for any telephone number / prefix in any area code. Search in Area Code 301 MARYLAND Enter prefix in box. This is a directory of U.S./Canada/Caribbean telephone prefixes and …The 301 area code is a telephone area code in the North American Numbering Plan (NANP) for parts of Maryland, including Montgomery County and Prince …Area Code 301 has 700 prefixes. Browse area code 301 phone numbers, …Browse a complete list of area codes and look up area codes by city, state, or map. Reverse lookup areas codes by phone number and auto-detect your own area code by location. Area Codes. List by Country/State; ... 301, 410, 443, 667: Massachusetts: 339, 351, 413, 508, 617, 774, 781, 857, 978:Area code 301 serves the state of Maryland. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 301 is a General Purpose Code. 301 …Area codes 202 and 771. Coordinates: 38°54′N 77°2′W. The red area is the District of Columbia, served by area codes 202 and 771. Area codes 202 and 771 are telephone area codes in the North American Numbering Plan (NANP) for Washington, D.C. Area code 202 was one of the original North American area codes established in October …Phone codes of countries and regions. Samples: +91 8413 307 , 918413307 , +1441. . Last update: Apr 11, 2024. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * …Boone. Integrated Path Communications, Llc - Ia. 1-515-501. 1-515-502. Browse area code 515 phone numbers, prefixes and exchanges. The 515 area code serves Des Moines, Urbandale, Johnston, Ames, Gowrie, covering 90 ZIP codes in 19 counties. 1-301-679-XXXX is a Landline prefix hosted by the carrier Teleport Communications America, Llc - Dc. It includes 444 phone numbers. The city is Washington within District of Columbia County. This number is from the 20009 Zip Code. 444 results found for 1-301-679 3 days ago · 301-998. WSNGTNZN11, MD. VERIZON MARYLAND, INC. 301-999. VERIZON MARYLAND, INC. [UNASSIGNED] Back to top ». Area code 301 is located in W Maryland and includes Silver Spring. View the 301 area code map, major cities, location, timezone and more on TeraCodes.com. The 0141 area code will allow you to make calls to Glasgow from wherever in the world you are. For those who wish to call Glasgow from abroad, follow these simple steps: 1. Dial the international access code. 2. Enter the UK country code (44) 3. Dial the local 0141 Glasgow, without the first zero. 4.Wisconsin. (1)715. Wisconsin. (1)920. Wyoming. (1)307. Find all phone codes for the US at Rebtel.com - All USA's dialling codes and more information about calling to the USA.What Is Area Code 301? 301 is a Maryland telephone area code. It was one of the original area codes established in 1947. The area code covers the northwestern suburbs of …Most frequently searched (301) phone numbers in the past 24 hours. (301) 301-9132. 201 searches (301) 301-9124. 52 searches (301) 635-9267. 9 ... Montgomery County, covered by area code 301, is one of the most affluent counties in the United States, with a strong focus on education and a highly educated population.Markham. Cluj-Napoca. Fierbinti-Targ. You are here: home Homepage. Country Code +92: Phone Calls from Pakistan. Search By Number. Country Dialling Code +92: Search for and report possible spam calls from Pakistan. Received a missed or unknown call starting with the international dialing code +92.Greenbelt reverse lookup of phone numbers! Free Search of area code 301-901 numbers, how to call Maryland, zip codes, local time. Toggle navigation. Search Yellow Directory.com. ... How to Dial Phone Numbers in USA USA Phone Numbers: +1 + Area Code + Local Number Greenbelt, MD - 1-301-901 Reverse Phone Search. How to make …Area code 301 belongs to Maryland, UNITED STATES. It is a General Purpose Code which was placed in service on Jan 01, 1947. (301) has 678 prefixes with phone numbers found in the U.S. federal and non-federal datasets. Reverse lookup areas codes by phone number and auto-detect your own area code by location. Area Codes. List by Country/State; ... 240, 301, 410, 443, 667: Massachusetts: Most frequently searched (301) phone numbers in the past 24 hours. (301) 301-9132. 201 searches (301) 301-9124. 52 searches (301) 635-9267. 9 ... Montgomery County, covered by area code 301, is one of the most affluent counties in the United States, with a strong focus on education and a highly educated population.Area Code 301 has 700 prefixes. Browse area code 301 phone numbers, …Area Code 301 phone numbers - Page 2 . State: Maryland . In service since: 1947 Landlines: 636 Wireless prefixes: 145 Carriers: 37 Counties: 16 ZIP codes: 95 Major cities: Washington, Beltsville, Silver Spring, Hyattsville, Frederick . Area Code 301 has 700 prefixes. Prefix County City Carrier;The 0141 area code will allow you to make calls to Glasgow from wherever in the world you are. For those who wish to call Glasgow from abroad, follow these simple steps: 1. Dial the international access code. 2. Enter the UK country code (44) 3. Dial the local 0141 Glasgow, without the first zero. 4.not in use; code is reserved for directory assistance applications. 1-NPA-555-01XX is used for fictional telephone numbers; 1-NPA-555-1212 is used for directory assistance; and other 1-NPA-555-XXXX numbers can be used for other 555 services. 556. not in use; available for personal communications services.Renumbered from Occupations Code, Section 301.353 by Acts 2007, 80th Leg., R.S., Ch. 921 (H.B. 3167), Sec. 17.001(57), eff. September 1, 2007. Sec. 301.356. REFUSAL OF MANDATORY OVERTIME. The refusal by a nurse to work mandatory overtime as authorized by Chapter 258, Health and Safety Code, does not constitute patient …January 26, 2024. BY Baltimore Examiner. No Comments. When we flip through the annals of telecommunications history, the 301 area code emerges not simply as a collection of …Wisconsin. (1)715. Wisconsin. (1)920. Wyoming. (1)307. Find all phone codes for the US at Rebtel.com - All USA's dialling codes and more information about calling to the USA.Browse area code 631 phone numbers, prefixes and exchanges. The 631 area code serves New York, Farmingdale, New Hyde Park, Syosset, Westbury, covering 52 ZIP codes in 6 counties. ... 1-631-301 : New York : New York : Telnyx Llc : 1-631-302 : New York : New York : Xo New York, Inc. 1-631-303 : Nassau :Most popular prefixes in 301. 349. 549. 274. 430. 771. 971. 259. 690. 304. 498. 392. 358. 741. 646. 204. 917. 747. 737. 622. 760. Phone number (s) in area code 301. 301-994 …Enter any United States, Canadian, or Caribbean telephone number, including area code, to look up details about the exchange. Lookup Number Access limited to 10 queries in a 24 hour period.Area Code 301 phone numbers. In Service Since 1947. Primarily serving the state of Maryland • Across 16 counties and 95 zip codes. Major Cities Served: Washington • …Most popular prefixes in 301. 349. 549. 274. 430. 771. 971. 259. 690. 304. 498. 392. 358. 741. 646. 204. 917. 747. 737. 622. 760. Phone number (s) in area code 301. 301-994 … To faciltiate the millions of phone users, the United States of America is divided into regions known as Area Codes, ... 301, 410: Maine: 207: 1-301-200-XXXX is a Landline prefix hosted by the carrier Bandwidth.com Clec, Llc - Md. It includes 297 phone numbers. The city is Washington within District of Columbia County. This number is from the 20009 Zip Code. 297 results found for 1-301-200 Maryland originally had one area code, 301, when the numbering system was established in 1947. It was not until forty-four years later in 1991 that Maryland experienced sufficient growth in population and telephone use to need an additional area code. To meet this increase in demand area code 301 was split to form area code 410. Area Code 301 has 781 prefixes. Broadwing Communications. Llc - Md. Browse area code 301 phone numbers, prefixes and exchanges. The 301 area code serves Washington, Beltsville, Silver Spring, Hyattsville, Hagerstown, covering 95 ZIP codes in 16 counties. Top searched (301) phone numbers. Most frequently searched (301) phone numbers in the past 24 hours. (301) 301-9117. 84 searches (301) 301-9112 ... Area code 301 serves the western and southern parts of Maryland, including cities like Bethesda, Rockville, and Gaithersburg. The region offers a blend of suburban and rural landscapes.Dec 12, 2023 · How to Call A Phone Number with the 202, 301, and 703 Area Codes? You may dial any phone number with the 202, 301, and 703 area codes by following these two simple steps – In this situation, dial 202, 301, and 703 on your phone, which is the area code. Then dial the seven-digit phone number. That is all you need to do! Reverse lookup areas codes by phone number and auto-detect your own area code by location. Area Codes. List by Country/State; ... 240, 301, 410, 443, 667: Massachusetts: Greenbelt reverse lookup of phone numbers! Free Search of area code 301-901 numbers, how to call Maryland, zip codes, local time. Toggle navigation. Search Yellow Directory.com. ... How to Dial Phone Numbers in USA USA Phone Numbers: +1 + Area Code + Local Number Greenbelt, MD - 1-301-901 Reverse Phone Search. How to make …The 227 area code will also co-exist everywhere in this region along with the 240 and 301 area codes. Officials noted that callers will still be required to use 10-digit dialing when making calls ...A full UK phone number, or just an area code or other dialling code. Telephone numbers and dialling codes must start with an '0'. E.g. 01632 960008; An access/short code, which starts with '1'. E.g. 100; An exchange name, optionally followed by a local phone number or dialling code on that exchange. E.g. Anytown 80819Browse area code 801 phone numbers, prefixes and exchanges. The 801 area code serves Salt Lake City, Draper, West Valley City, Ogden, West Jordan, covering 45 ZIP codes in 6 counties. ... 1-801-301 : Salt Lake : Salt Lake City : Sprint Spectrum L.p. 1-801-302 : Salt Lake : Riverton : Qwest Corporation :California >. Los Angeles. The city of Los Angeles is in the state of California. It has the following active area codes: 213. 310. 323. 424. 562.Lookup phone numbers & find out more about who is calling you. 411. 411 reverse phone lookup service is free. Enter a phone number, search and find the phone owner’s full name, address and more. Find out who called you.Nov 5, 2023 · Last Updated: November 5, 2023. HTTP Status 301 is one of the redirection-related statuses, which indicates that the resource requested has been permanently moved to the URI given by the ‘ Location ‘ header and all future requests should use the new URI. Redirection is the process of forwarding the request from one URL to a different URL. Mobile Numbers. Mobile telephone numbers always carry a three-digit network code, in the format " 6x1 ", which is followed by six digits. The leading " 6 " of these numbers is not omitted when dialing from abroad. 6x1 xxx xxx (within Luxembourg) +352 6x1 xxx xxx (outside Luxembourg) These codes were introduced on 1 September 2006, replacing ...Browse a complete list of area codes and look up area codes by city, state, or map. Reverse lookup areas codes by phone number and auto-detect your own area code by location. Area Codes. List by Country/State; ... 301, 410, 443, 667: Massachusetts: 339, 351, 413, 508, 617, 774, 781, 857, 978:The 301 Area Code is located in the state of Maryland. Area Code 301 is one of the 325 3-digit telephone area codes in the USA. We have roughly 1,304,142 unique phone numbers and 2,514,919 individuals near the cities of Germantown, MD; Silver Spring, MD and Waldorf, MD in the database. Area code 301 serves the state of Maryland. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 301 is a General Purpose Code. 301 service area does overlap with 240 area codes. Dialing pattern for local calls within the same NPA (area code) is 10D. 301 Moved Permanently is an HTTP status code that indicates that the requested resource has been permanently relocated to a new URL. This guide explains how to use and/or fix this code, with free examples and code snippets. You will also learn about other HTTP headers and topics, such as authentication, caching, and alternative services.(301) 301-9117. Negative (301) 301-9124. Negative (877) 306-7586. Negative (833) 955-4530. Positive (800) 678-7986. Negative (801) 438-8160. Negative (800) 240-8151. ... Phone scams can be tricky to identify, as scammers use deceptive tactics to make their calls seem legitimate. However, there are certain signs that generally indicate a phone …Phone number: 301 or +301. Country code: +30. Country: Greece. Local time:Europe/Athens: GMT+03:00. language: English | Русский. Home Check phone number Country phone codes Phone code by city or country name. Information about phone number +30 1. Samples: +91 1533 743, 911533743, +88215.Phone number: 1301 or +1301. Country code: +1. Country: USA. Country code: +1. Country: Canada. Region code: +1301. Region: Maryland. ... Home Check phone number Country phone codes Phone code by city or country name. Information about phone number +1 301. Samples: +33 38056 76 ...1. Dial the international access code. 2. Enter the UK country code (44) 3. Dial the local 020 London Greater, without the first zero. 4. Enter the remaining telephone number. Find area codes from across the UK with our handy directory of dialling codes available at …Phone codes of countries and regions. Samples: +91 8413 307 , 918413307 , +1441. . Last update: Apr 11, 2024. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * …SBC 301-18 is the. design. SBC 301 describes the means for determining design loads including dead, live, soil, flood, rain, earthquake, and wind as well as how to assess load combinations. its 2007 edition. The code is reorganized into … Reverse lookup areas codes by phone number and auto-detect your own area code by location. Area Codes. List by Country/State; ... 240, 301, 410, 443, 667: Massachusetts: Country Dialling Code +216: Search for and report possible spam calls from Tunisia. Received a missed or unknown call starting with the international dialing code +216. ... January 25, 2024 was the day with the highest activity due to 8 reports for phone numbers with the country code +216. Phone Numbers from Tunisia with currently high …The three area codes are overlay codes for one numbering plan area, among which 410 was the initial area code for the NPA, when it was split from area code 301 in 1991. 443 and 667 found assignment primarily in cellular service and for competitive local exchange carriers, such as Comcast and Cavalier Telephone, when introduced, but have since ...Apr 15, 2024 · Reverse Phone Lookup - 301 Phone Number Search Best results for Maryland Reverse Phone Lookup; 1 + 301 + 7-digits! International dialing format: Exit Code + Country Code + Subscriber Number Exit Code 011: USA, Canada, Nanp Countries and U.S. territories. Area code 301 is in Maryland covering Germantown , along with Accident, Accokeek and 310 towns and cities. 301 Area Code Phone Lookup. 301 - Search. 203/475. + −. Leaflet | …Area code 301 is assigned for use in Maryland since Jan 01, 1947. View all phone prefixes used in area code 301 or other area codes in Maryland . Included with …301 Area Code Phone Directory. Phone Prefixes in the 301 Area Code. (301) 2XX (301) 3XX (301) 4XX (301) 5XX (301) 6XX (301) 7XX (301) 8XX (301) 9XX. Information for …Greenbelt reverse lookup of phone numbers! Free Search of area code 301-901 numbers, how to call Maryland, zip codes, local time. Toggle navigation. Search Yellow Directory.com. ... How to Dial Phone Numbers in USA USA Phone Numbers: +1 + Area Code + Local Number Greenbelt, MD - 1-301-901 Reverse Phone Search. How to make …Area code 301 is located in western Maryland and covers Germantown, Silver Spring, Waldorf, Frederick, and Rockville. It has a single overlay (240) that serves the same … 1-301-200-XXXX is a Landline prefix hosted by the carrier Bandwidth.com Clec, Llc - Md. It includes 297 phone numbers. The city is Washington within District of Columbia County. This number is from the 20009 Zip Code. 297 results found for 1-301-200 301 Moved Permanently is an HTTP status code that indicates that the requested resource has been permanently relocated to a new URL. This guide explains how to use and/or fix this code, with free examples and code snippets. You will also learn about other HTTP headers and topics, such as authentication, caching, and alternative services.1-301-679-XXXX is a Landline prefix hosted by the carrier Teleport Communications America, Llc - Dc. It includes 444 phone numbers. The city is Washington within District of Columbia County. This number is from the 20009 Zip Code. 444 results found for 1-301-679Most current and detailed information for Idaho area codes and telephone prefixes / exchanges and associated cities and towns. Area Codes Country Codes Zip Codes Telecoms. Area Codes Country Codes Zip Codes ... 208-301. MOSCOW, ID. NEW CINGULAR WIRELESS PCS, LLC . 208-302. BOISE, ID. QWEST CORPORATION . …When the original phone systems were put in place, 7-digit dialing (without the area code) could be used to make local calls, and 10-digit dialing (with the area code) only needed to be used for long distance calls. In 1997, area code 301 was introduced as the firstAgent Code. 318-301-5947; Minor Coupons. 110-349-1707; 437-315-4229; ... Just type the coupon code on the phone, screenshot below: Agent17 Coupon Code FAQs. How to Cheat More Resources in the game? Press SHIFT + O to call console (if not work, make sure that the developer console has been enabled)1 day ago · Apr 23, 2024. 301 Area Code. Area code 301 is assigned for use in Maryland since Jan 01, 1947. View all phone prefixes used in area code 301 or other area codes in Maryland . Included with the location of each prefix are the phone companies / service providers that operates them. Phone Number Lookup. ( 301 ) Phone Lookup. Numbering plan areas in California (blue) and border states. In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes.The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, … In 1997 area codes 301 was overlaid with area code 240. Area code 227 was put into service as a distributed overlay of area codes 240 and 301 in Maryland on 06/14/23. Ten digit dialing (area code + seven digit number) is necessary in the 227/240/301 overlay because different homes in the same geographic area can have the same seven digit phone ...
You may be the target of a "one-ring" phone scam. One-ring calls may appear to be from phone numbers somewhere in the United States, including three initial digits that resemble U.S. area codes. But savvy scammers often use international numbers from regions that also begin with three-digit codes – for example, "232" goes to Sierra Leone and .... Fif_i
Most frequently searched (301) phone numbers in the past 24 hours. (301) 301-9132. 206 searches (301) 301-9124. 42 searches (301) 381-1942. 10 searches ... Montgomery County, covered by area code 301, is one of the most affluent counties in the United States, with a strong focus on education and a highly educated population.The 301 Area Code is located in the state of Maryland. Area Code 301 is one of the 269 three-digit telephone area codes in the USA. It covers roughly 7,744,994 unique phone …Area Code 301 phone numbers - Page 2 . State: Maryland . In service since: 1947 Landlines: 636 Wireless prefixes: 145 Carriers: 37 Counties: 16 ZIP codes: 95 Major cities: Washington, Beltsville, Silver Spring, Hyattsville, Frederick . Area Code 301 has 700 prefixes. Prefix County City Carrier;When the original phone systems were put in place, 7-digit dialing (without the area code) could be used to make local calls, and 10-digit dialing (with the area code) only needed to be used for long distance calls. In 1997, area code 301 was introduced as the first Area codes are three-digit numbers that represent Numbering Plan Areas (NPAs). The area code for a particular city or region is the series of numbers that you have to dial before someone’s number if you are making a phone call to that place from a different area. Area code 301 serves the state of Maryland. Whitepages is the leader in helping consumers and small businesses find accurate and up-to-date phone numbers, addresses, and emails. Since 1997, Whitepages has been the largest and most trusted U.S. phone book and address directory online with contact information, public records and property records for 260 million people nation-wide.Country Dialling Code +234: Search for and report possible spam calls from Nigeria. Received a missed or unknown call starting with the international dialing code +234. ... March 1, 2024 was the day with the highest activity due to 28 reports for phone numbers with the country code +234. Phone Numbers from Nigeria with currently high …Whitepages is the leader in helping consumers and small businesses find accurate and up-to-date phone numbers, addresses, and emails. Since 1997, Whitepages has been the largest and most trusted U.S. phone book and address directory online with contact information, public records and property records for 260 million people nation-wide.On the World Wide Web, HTTP 301 is the HTTP response status code for 301 Moved Permanently.It is used for permanent redirecting, meaning that links or records returning this response should be updated. The new URL should be provided in the Location field, included with the response. The 301 redirect is considered a best practice for upgrading …Most current and detailed information for Maryland area codes and telephone prefixes / exchanges and associated cities and towns. Area Codes Country Codes Zip Codes Telecoms. Area Codes Country Codes Zip Codes ... 240-301 [UNASSIGNED] 240-302. LAUREL236, MD. NEW CINGULAR WIRELESS PCS, LLC - … Area codes 301 and 240. Area codes 301 and 240 are area codes that are part of Maryland. Area code 301 is one of the earliest area codes that were made in 1947. It initially covered the entire state until 1991, which is when it was split by 410, [1] which covers the eastern part of the state, while 301 now covers the western portion of the ... Phone numbers in the 301 area code can be found in 86 cities or locations. Those phone numbers can be found in the following cities or locations: Accident, Adamstown, Annapolis, Ashton, Avenue, Baltimore, Beltsville, Bethesda, Bittinger, Bowie, Brandywine, Brunswick, Bryans Road, Cabin John, ...Complete resource on dialing to the United States of America: country code, mobile and geographic area codes, phone number format and other helpful information. HowtoCallAbroad.com Toggle navigation. Home; ... 301/240/227: Baltimore, Columbia, Dundalk, Ellicott City, Towson: 410/443/667: Maine: Statewide: 207: Michigan:March 11, 2024 was the day with the highest activity due to 23 reports for phone numbers with the country code +57. Phone Numbers from Colombia with currently high activity. phone +573142875963 1 Request. phone +573242921381 1 Request. phone +573226223135 1 Request. phone +573006031508 1 Request. phone +573143065487 … Area Code 301 has 781 prefixes. Broadwing Communications. Llc - Md. Browse area code 301 phone numbers, prefixes and exchanges. The 301 area code serves Washington, Beltsville, Silver Spring, Hyattsville, Hagerstown, covering 95 ZIP codes in 16 counties. .