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Region Carrier Name:Maryland
This is the United States Region Carrier Name:Maryland Area Code Database page list. You can click the title to browse the detail information.
| City | National Destination Code | Sn from | Sn to | Number Type |
|---|---|---|---|---|
| Layhill | 240 | 4334000 | 4334999 | G |
| Layhill | 240 | 4335000 | 4335999 | G |
| Layhill | 240 | 4336000 | 4336999 | G |
| Layhill | 240 | 4337000 | 4337999 | G |
| Layhill | 240 | 4338000 | 4338999 | G |
| Layhill | 240 | 4339000 | 4339999 | G |
| Silver Spring | 240 | 4500000 | 4500999 | G |
| Silver Spring | 240 | 4501000 | 4501999 | G |
| Silver Spring | 240 | 4503000 | 4503999 | G |
| Silver Spring | 240 | 4504000 | 4504999 | G |
| Silver Spring | 240 | 4505000 | 4505999 | G |
| Silver Spring | 240 | 4506000 | 4506999 | G |
| Silver Spring | 240 | 4507000 | 4507999 | G |
| Silver Spring | 240 | 4508000 | 4508999 | G |
| Silver Spring | 240 | 4509000 | 4509999 | G |
| Berwyn | 240 | 4730000 | 4730999 | G |
| Berwyn | 240 | 4731000 | 4731999 | G |
| Berwyn | 240 | 4734000 | 4734999 | G |
| Berwyn | 240 | 4735000 | 4735999 | G |
| Berwyn | 240 | 4736000 | 4736999 | G |
| Berwyn | 240 | 4737000 | 4737999 | G |
| Berwyn | 240 | 4738000 | 4738999 | G |
| Berwyn | 240 | 4739000 | 4739999 | G |
| Kensington | 240 | 5582000 | 5582999 | G |
| Lexington Park-Great Mills | 240 | 7947000 | 7947999 | G |
| Bowie-Glenn Dale | 301 | 2055000 | 2055999 | G |
| Bethesda | 301 | 2220000 | 2220999 | G |
| Bethesda | 301 | 2221000 | 2221999 | G |
| Bethesda | 301 | 2222000 | 2222999 | G |
| Bethesda | 301 | 2224000 | 2224999 | G |
| Bethesda | 301 | 2225000 | 2225999 | G |
| Bethesda | 301 | 2226000 | 2226999 | G |
| Bethesda | 301 | 2228000 | 2228999 | G |
| Bethesda | 301 | 2229000 | 2229999 | G |
| Ashton 238 | 301 | 3293000 | 3293999 | G |
| Rockville | 301 | 3390000 | 3390999 | G |
| Rockville | 301 | 3391000 | 3391999 | G |
| Rockville | 301 | 3392000 | 3392999 | G |
| Rockville | 301 | 3395000 | 3395999 | G |
| Rockville | 301 | 3399000 | 3399999 | G |
| La Plata | 301 | 3924000 | 3924999 | G |
| Laurel 238 | 301 | 7083000 | 7083999 | G |
| Baltimore | 410 | 4000000 | 4000999 | G |
| Baltimore | 410 | 4001000 | 4001999 | G |
| Baltimore | 410 | 4002000 | 4002999 | G |
| Baltimore | 410 | 4003000 | 4003999 | G |
| Baltimore | 410 | 4004000 | 4004999 | G |
| Baltimore | 410 | 4005000 | 4005999 | G |
| Baltimore | 410 | 4006000 | 4006999 | G |
| Baltimore | 410 | 4007000 | 4007999 | G |
| Baltimore | 410 | 4008000 | 4008999 | G |
| Baltimore | 410 | 4009000 | 4009999 | G |
| Baltimore | 410 | 4488000 | 4488999 | G |
| Baltimore | 410 | 4647000 | 4647999 | G |
| Baltimore | 410 | 4648000 | 4648999 | G |
| Baltimore | 410 | 4838000 | 4838999 | G |
| Cockeysville | 410 | 4980000 | 4989999 | G |
| Baltimore | 410 | 5856000 | 5856999 | G |
| Baltimore | 410 | 5858000 | 5858999 | G |
| Baltimore | 410 | 5859000 | 5859999 | G |
| Randallstown | 410 | 7016000 | 7016999 | G |
| Baltimore | 410 | 7350000 | 7350999 | G |
| Baltimore | 410 | 7351000 | 7351999 | G |
| Baltimore | 410 | 7352000 | 7352999 | G |
| Baltimore | 410 | 7353000 | 7353999 | G |
| Baltimore | 410 | 7355000 | 7355999 | G |
| Baltimore | 410 | 7358000 | 7358999 | G |
| Baltimore | 410 | 7359000 | 7359999 | G |
| Baltimore | 410 | 7790000 | 7790999 | G |
| Baltimore | 410 | 7791000 | 7791999 | G |
| Baltimore | 410 | 7792000 | 7792999 | G |
| Baltimore | 410 | 7795000 | 7795999 | G |
| Baltimore | 410 | 7796000 | 7796999 | G |
| Baltimore | 410 | 7797000 | 7797999 | G |
| Baltimore | 410 | 8000000 | 8000999 | G |
| Baltimore | 410 | 8142000 | 8142999 | G |
| Baltimore | 410 | 8143000 | 8143999 | G |
| Baltimore | 410 | 8144000 | 8144999 | G |
| Baltimore | 410 | 8145000 | 8145999 | G |
| Baltimore | 410 | 8146000 | 8146999 | G |
| Baltimore | 410 | 8147000 | 8147999 | G |
| Waterloo 236 | 410 | 8242000 | 8242999 | G |
| Sherwood Forest | 410 | 8818000 | 8818999 | G |
| Dundalk | 443 | 2162000 | 2162999 | G |
| Dundalk | 443 | 2163000 | 2163999 | G |
| Dundalk | 443 | 2164000 | 2164999 | G |
| Dundalk | 443 | 2165000 | 2165999 | G |
| Dundalk | 443 | 2166000 | 2166999 | G |
| Dundalk | 443 | 2168000 | 2168999 | X |
| Baltimore | 443 | 2242000 | 2242999 | G |
| Severna Park | 443 | 2290000 | 2290999 | G |
| Severna Park | 443 | 2291000 | 2291999 | G |
| Severna Park | 443 | 2293000 | 2293999 | G |
| Severna Park | 443 | 2295000 | 2295999 | G |
| Severna Park | 443 | 2298000 | 2298999 | G |
| Severna Park | 443 | 2299000 | 2299999 | G |
| Sparrows Point | 443 | 2420000 | 2420999 | G |
| Sparrows Point | 443 | 2421000 | 2421999 | G |
| Sparrows Point | 443 | 2423000 | 2423999 | G |
| Sparrows Point | 443 | 2425000 | 2425999 | G |
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