Area code 240 covers part of Marylandstate, covering most of Montgomery, Prince George's, Howard, St. Mary's, Charles counties. It was started on Jan 01, 2000. This region follows US/Eastern + Daylight Savings timezone. Other popular area codes that belong to Maryland state include 301, 410, 443, 667.
Date Changed | Change Details |
Jun 14, 2014 | Area code 240-702 will be de-activated on Jun 14, 2014 for all subscribers. Subscribers of area code 240 can use the overlayed area code 301 from Jun 14, 2014. |
Apr 28, 2014 | Area code 301 subscribers are now overlayed with area code 240. Subscriber area code 240-743 was assigned on Nov 16, 2006 and is operational from Apr 28, 2014. |
Apr 02, 2014 | Area code 301 subscribers are now overlayed with area code 240. Subscriber area code 240-716 was assigned on Mar 05, 2014 and is operational from Apr 02, 2014. |
Mar 23, 2014 | Area code 301 subscribers are now overlayed with area code 240. Subscriber area code 240-708 was assigned on Feb 26, 2014 and is operational from Mar 23, 2014. |
Mar 23, 2014 | Area code 301 subscribers are now overlayed with area code 240. Subscriber area code 240-762 was assigned on Mar 28, 2013 and is operational from Mar 23, 2014. |
Mar 23, 2014 | Area code 301 subscribers are now overlayed with area code 240. Subscriber area code 240-779 was assigned on Feb 25, 2014 and is operational from Mar 23, 2014. |
Area Code | City | County | Population | Network Operator |
240-700 | 495,702 | Intralata Pic Validation | ||
240-701-0 | Station Hills | Montgomery | 971,777 | Leap Wireless International Inc dba Cricket Communications Inc |
240-702 | Annapolis Junction | Prince George's | 863,420 | Cellco Partnership dba Verizon Wireless - MD |
240-704-0 | Station Hills | Montgomery | 971,777 | Leap Wireless International Inc dba Cricket Communications Inc |
240-704-9 | Washington | Montgomery | 971,777 | Bandwidth.com CLEC LLC - MD |
240-705-0 | Station Hills | Montgomery | 971,777 | Leap Wireless International Inc dba Cricket Communications Inc |
240-705-9 | Washington | Montgomery | 971,777 | Bandwidth.com CLEC LLC - MD |
240-705-7 | Washington | Montgomery | 971,777 | XO Maryland LLC |
240-706-0 | Station Hills | Montgomery | 971,777 | Leap Wireless International Inc dba Cricket Communications Inc |
240-706-7 | Washington | Montgomery | 971,777 | Bandwidth.com CLEC LLC - MD |
240-706-9 | Washington | Montgomery | 971,777 | YMax Communications Corporation - MD |
240-707-1 | Frederick | Washington | 147,430 | Cellco Partnership dba Verizon Wireless - MD |
240-707-3 | Frederick | Washington | 147,430 | US LEC of Maryland Inc |
240-707-6 | Martinsburg | Washington | 147,430 | Sprint Communications Company LP - MD |
240-707-0 | Monrovia | Washington | 147,430 | New Cingular Wireless PCS LLC - DC |
240-708-7 | Baltimore | Howard | 287,085 | CTC Communications Corporation - MD |
240-708-0 | Baltimore | Howard | 287,085 | Level 3 Communications LLC - MD |
240-708-9 | Baltimore | Howard | 287,085 | Omnipoint Communications Cap Operations LLC |
240-711 | 988,713 | Telecommunications Relay Service | ||
240-712-4 | Baltimore | Howard | 287,085 | Bandwidth.com CLEC LLC - MD |
240-712-0 | Baltimore | Howard | 287,085 | Cellco Partnership dba Verizon Wireless - MD |
240-712-6 | Columbia | Howard | 287,085 | US LEC of Maryland Inc |
240-712-5 | Pikesville | Howard | 287,085 | Broadvox-CLEC LLC - MD |
240-713-8 | Beltsville | Prince George's | 863,420 | Omnipoint Communications Cap Operations LLC |
240-713-0 | Silver Spring | Prince George's | 863,420 | Peerless Network of Maryland LLC |
240-715-8 | Beltsville | Montgomery | 971,777 | Omnipoint Communications Cap Operations LLC |
240-715-0 | Washington | Montgomery | 971,777 | Global Crossing Local Services Inc - MD |
240-716-7 | Prince George's | 863,420 | Qwest Communications Company LLC | |
240-716-0 | Beltsville | Prince George's | 863,420 | Omnipoint Communications Cap Operations LLC |
240-718-8 | Washington | St. Mary's | 105,151 | Bandwidth.com CLEC LLC - MD |
240-718-9 | Washington | St. Mary's | 105,151 | Sprint Spectrum LP |
240-718-0 | Washington | St. Mary's | 105,151 | XO Maryland LLC |
240-720-3 | Mc Lean | Montgomery | 971,777 | Level 3 Communications LLC - MD |
240-720-2 | Silver Spring | Montgomery | 971,777 | Local Access LLC - MD |
240-720-7 | Washington | Montgomery | 971,777 | Bandwidth.com CLEC LLC - MD |
240-720-0 | Washington | Montgomery | 971,777 | Global Crossing Local Services Inc - MD |
240-720-6 | Washington | Montgomery | 971,777 | XO Maryland LLC |
240-720-5 | Washington | Montgomery | 971,777 | YMax Communications Corporation - MD |
240-722-8 | Beltsville | Montgomery | 971,777 | Omnipoint Communications Cap Operations LLC |
240-722-5 | Mc Lean | Montgomery | 971,777 | Level 3 Communications LLC - MD |
240-722-1 | Washington | Montgomery | 971,777 | Bandwidth.com CLEC LLC - MD |
240-722-0 | Washington | Montgomery | 971,777 | Global Crossing Local Services Inc - MD |
240-723-0 | Adelphi | Montgomery | 971,777 | Cellco Partnership dba Verizon Wireless - MD |
240-723-8 | Beltsville | Montgomery | 971,777 | Sprint Spectrum LP |
240-724-7 | Mc Lean | Prince George's | 863,420 | Level 3 Communications LLC - MD |
240-724-8 | Washington | Prince George's | 863,420 | Broadvox - CLEC LLC - DC |
240-724-0 | Washington | Prince George's | 863,420 | Cavalier East LLC - MD |
240-725 | Lexington Park | St. Mary's | 105,151 | Verizon Maryland Inc |
240-727-0 | Monrovia | Allegany | 75,087 | New Cingular Wireless PCS LLC - DC |
240-731 | Beltsville | Montgomery | 971,777 | New Cingular Wireless PCS LLC - DC |
240-734-0 | Hagerstown | Washington | 147,430 | Bandwidth.com CLEC LLC - MD |
240-737 | Washington | Prince George's | 863,420 | Cavalier East LLC - MD |
240-743-4 | Alexandria | Montgomery | 971,777 | Comcast Phone of Northern Maryland Inc - MD |
240-743-9 | Annapolis Junction | Montgomery | 971,777 | Cellco Partnership dba Verizon Wireless - MD |
240-743-6 | Beltsville | Montgomery | 971,777 | Omnipoint Communications Cap Operations LLC |
240-743-3 | Mc Lean | Montgomery | 971,777 | Level 3 Communications LLC - MD |
240-743-0 | Silver Spring | Montgomery | 971,777 | Local Access LLC - MD |
240-744-6 | Beltsville | Montgomery | 971,777 | Sprint Spectrum LP |
240-744-0 | Washington | Montgomery | 971,777 | Broadwing Communications LLC - MD |
240-745-2 | Alexandria | Montgomery | 971,777 | Comcast Phone of Northern Maryland Inc - MD |
240-745-1 | Mc Lean | Montgomery | 971,777 | US LEC of Maryland Inc |
240-745-6 | Washington | Montgomery | 971,777 | Bandwidth.com CLEC LLC - MD |
240-745-0 | Washington | Montgomery | 971,777 | XO Maryland LLC |
240-747-7 | Mc Lean | Montgomery | 971,777 | Level 3 Communications LLC - MD |
240-747-0 | Washington | Montgomery | 971,777 | Cavalier East LLC - MD |
240-750-9 | Annapolis Junction | Montgomery | 971,777 | Cellco Partnership dba Verizon Wireless - MD |
240-750-0 | Beltsville | Montgomery | 971,777 | New Cingular Wireless PCS LLC - DC |
240-750-6 | Mc Lean | Montgomery | 971,777 | Level 3 Communications LLC - MD |
240-751-8 | Beltsville | Montgomery | 971,777 | New Cingular Wireless PCS LLC - DC |
240-751-0 | Chevy Chase | Montgomery | 971,777 | TelCove Operations Inc - MD |
240-751-9 | Mc Lean | Montgomery | 971,777 | Level 3 Communications LLC - MD |
240-752-5 | Beltsville | Montgomery | 971,777 | Sprint Spectrum LP |
240-752-1 | Chevy Chase | Montgomery | 971,777 | Paetec Communications Inc - MD |
240-752-0 | Chevy Chase | Montgomery | 971,777 | TelCove Operations Inc - MD |
240-752-9 | Mc Lean | Montgomery | 971,777 | Level 3 Communications LLC - MD |
240-753-9 | Annapolis Junction | Montgomery | 971,777 | Cellco Partnership dba Verizon Wireless - MD |
240-753-8 | Beltsville | Montgomery | 971,777 | New Cingular Wireless PCS LLC - DC |
240-753-0 | Chevy Chase | Montgomery | 971,777 | TelCove Operations Inc - MD |
240-753-7 | Mc Lean | Montgomery | 971,777 | Level 3 Communications LLC - MD |
240-753-0 | Washington | Montgomery | 971,777 | Bandwidth.com CLEC LLC - MD |
240-754-7 | Alexandria | Charles | 146,551 | Comcast Phone of Northern Maryland Inc - MD |
240-754-6 | Chevy Chase | Charles | 146,551 | Paetec Communications Inc - MD |
240-754-0 | Mc Lean | Charles | 146,551 | Level 3 Communications LLC - MD |
240-755-8 | Baltimore | Howard | 287,085 | Bandwidth.com CLEC LLC - MD |
240-755-9 | Baltimore | Howard | 287,085 | Cellco Partnership dba Verizon Wireless - MD |
240-755-6 | Baltimore | Howard | 287,085 | Omnipoint Communications Cap Operations LLC |
240-755-0 | White Marsh | Howard | 287,085 | Comcast Phone of Northern Maryland Inc - MD |
240-757 | Washington | Prince George's | 863,420 | Peerless Network of Maryland LLC |
240-762-0 | Annapolis Junction | Montgomery | 971,777 | Cellco Partnership dba Verizon Wireless - MD |
240-762-9 | Beltsville | Montgomery | 971,777 | Omnipoint Communications Cap Operations LLC |
240-762-5 | Chevy Chase | Montgomery | 971,777 | Paetec Communications Inc - MD |
240-762-7 | Washington | Montgomery | 971,777 | Teleport Communications America LLC - DC |
240-764-8 | Alexandria | Prince George's | 863,420 | Comcast Phone of Northern Maryland Inc - MD |
240-764-9 | Beltsville | Prince George's | 863,420 | Omnipoint Communications Cap Operations LLC |
240-764-4 | Mc Lean | Prince George's | 863,420 | Level 3 Communications LLC - MD |
240-764-0 | Washington | Prince George's | 863,420 | XO Maryland LLC |
240-765-4 | Beltsville | Prince George's | 863,420 | Omnipoint Communications Cap Operations LLC |
240-765-9 | Beltsville | Prince George's | 863,420 | Sprint Spectrum LP - MD |
240-765-0 | Washington | Prince George's | 863,420 | XO Maryland LLC |
240-765-7 | Washington | Prince George's | 863,420 | YMax Communications Corporation - MD |
240-766-2 | Alexandria | Prince George's | 863,420 | Comcast Phone of Northern Maryland Inc - MD |
240-766-7 | Washington | Prince George's | 863,420 | Bandwidth.com CLEC LLC - MD |
240-767-7 | Laurel | Prince George's | 863,420 | VDL Inc dba Global Telecom Brokers - MD |
240-767-0 | Washington | Prince George's | 863,420 | Cavalier East LLC - MD |
240-770-0 | Alexandria | Prince George's | 863,420 | Comcast Phone of Northern Maryland Inc - MD |
240-772-0 | Frederick | Frederick | 233,385 | Cellco Partnership dba Verizon Wireless - MD |
240-772-8 | Frederick | Frederick | 233,385 | MetroPCS Inc |
240-773 | Rockville | Montgomery | 971,777 | Verizon Maryland Inc |
240-776-4 | Alexandria | Charles | 146,551 | Comcast Phone of Northern Maryland Inc - MD |
240-776-0 | Washington | Charles | 146,551 | Broadwing Communications LLC - MD |
240-777 | Rockville | Montgomery | 971,777 | Verizon Maryland Inc |
240-778-9 | Annapolis Junction | Montgomery | 971,777 | Cellco Partnership dba Verizon Wireless - MD |
240-778-6 | Washington | Montgomery | 971,777 | Cbeyond Communications LLC - MD |
240-779-7 | Beltsville | Montgomery | 971,777 | Omnipoint Communications Cap Operations LLC |
240-780-7 | Alexandria | Montgomery | 971,777 | Comcast Phone of Northern Maryland Inc - MD |
240-780-8 | Washington | Montgomery | 971,777 | Bandwidth.com CLEC LLC - MD |
240-782-5 | Mc Lean | Montgomery | 971,777 | Level 3 Communications LLC - MD |
240-782-0 | Washington | Montgomery | 971,777 | Global Crossing Local Services Inc - MD |
240-783 | Baileys Crossroads | Montgomery | 971,777 | MTE Inc dba MTE Paging Network |
240-784-0 | Frederick | Frederick | 233,385 | Omnipoint Communications Cap Operations LLC |
240-786-7 | Alexandria | Prince George's | 863,420 | Comcast Phone of Northern Maryland Inc - MD |
240-786-0 | Washington | Prince George's | 863,420 | Broadwing Communications LLC - MD |
240-787-0 | Washington | Prince George's | 863,420 | Broadwing Communications LLC - MD |
240-788-7 | Alexandria | Prince George's | 863,420 | Comcast Phone of Northern Maryland Inc - MD |
240-788-0 | Washington | Prince George's | 863,420 | Broadwing Communications LLC - MD |
240-790-0 | Washington | Prince George's | 863,420 | Broadwing Communications LLC - MD |
240-793-0 | Beltsville | Montgomery | 971,777 | Sprint Spectrum LP |
240-794-8 | Beltsville | St. Mary's | 105,151 | Omnipoint Communications Cap Operations LLC |
240-794-4 | Washington | St. Mary's | 105,151 | Bandwidth.com CLEC LLC - MD |
240-794-5 | Washington | St. Mary's | 105,151 | Sprint Spectrum LP |
No reviews yet. |
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