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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 |
|---|---|---|---|---|
| Bowie-Glenn Dale | 240 | 2060000 | 2060999 | G |
| Bowie-Glenn Dale | 240 | 2062000 | 2062999 | G |
| Bowie-Glenn Dale | 240 | 2063000 | 2063999 | G |
| Bowie-Glenn Dale | 240 | 2064000 | 2064999 | G |
| Berwyn | 240 | 2415000 | 2415999 | G |
| Berwyn | 240 | 2416000 | 2416999 | G |
| Hughesville | 240 | 2540000 | 2540999 | G |
| Hughesville | 240 | 2543000 | 2543999 | G |
| Hughesville | 240 | 2545000 | 2545999 | G |
| Hughesville | 240 | 2546000 | 2546999 | G |
| Leonardtown | 240 | 2567000 | 2567999 | G |
| Leonardtown | 240 | 2568000 | 2568999 | G |
| Nanjemoy | 240 | 2577000 | 2577999 | G |
| Laurel 236 | 240 | 2645000 | 2645999 | G |
| Laurel 236 | 240 | 2800000 | 2800999 | G |
| Kensington | 240 | 2927000 | 2927999 | G |
| Laurel 236 | 240 | 2940000 | 2940999 | G |
| Laurel 236 | 240 | 2949000 | 2949999 | G |
| Bethesda | 240 | 3163000 | 3163999 | G |
| Lexington Park-Great Mills | 240 | 3176000 | 3176999 | G |
| La Plata | 240 | 3493000 | 3493999 | G |
| Bethesda | 240 | 3831000 | 3831999 | G |
| Bethesda | 240 | 3833000 | 3833999 | G |
| Berwyn Heights | 240 | 3876000 | 3876999 | G |
| Berwyn Heights | 240 | 3877000 | 3877999 | G |
| Ashton 236 | 240 | 3902000 | 3902999 | G |
| Ashton 236 | 240 | 3903000 | 3903999 | G |
| Rockville | 240 | 3990000 | 3999999 | G |
| Gaithersburg | 240 | 4040000 | 4040999 | G |
| Gaithersburg | 240 | 4046000 | 4046999 | G |
| Gaithersburg | 240 | 4047000 | 4047999 | G |
| Gaithersburg | 240 | 4049000 | 4049999 | G |
| Rockville | 240 | 4087000 | 4087999 | G |
| Rockville | 240 | 4088000 | 4088999 | G |
| Waldorf | 240 | 4270000 | 4270999 | G |
| Waldorf | 240 | 4273000 | 4273999 | G |
| Waldorf | 240 | 4274000 | 4274999 | G |
| Waldorf | 240 | 4279000 | 4279999 | G |
| Ashton 236 | 240 | 4370000 | 4370999 | G |
| Ashton 236 | 240 | 4375000 | 4375999 | G |
| Gaithersburg | 240 | 4548000 | 4548999 | G |
| Gaithersburg | 240 | 4549000 | 4549999 | G |
| Laurel 236 | 240 | 4596000 | 4596999 | G |
| Poolesville | 240 | 4890000 | 4890999 | G |
| Poolesville | 240 | 4894000 | 4894999 | G |
| Poolesville | 240 | 4895000 | 4895999 | G |
| Poolesville | 240 | 4896000 | 4896999 | G |
| Poolesville | 240 | 4897000 | 4897999 | G |
| Poolesville | 240 | 4898000 | 4898999 | G |
| Poolesville | 240 | 4899000 | 4899999 | G |
| Upper Marlboro | 240 | 5100000 | 5100999 | G |
| Upper Marlboro | 240 | 5101000 | 5101999 | G |
| Upper Marlboro | 240 | 5102000 | 5102999 | G |
| Upper Marlboro | 240 | 5109000 | 5109999 | G |
| Layhill | 240 | 5167000 | 5167999 | G |
| La Plata | 240 | 5230000 | 5230999 | G |
| La Plata | 240 | 5235000 | 5235999 | G |
| La Plata | 240 | 5236000 | 5236999 | G |
| La Plata | 240 | 5237000 | 5237999 | G |
| La Plata | 240 | 5238000 | 5238999 | G |
| La Plata | 240 | 5239000 | 5239999 | G |
| Leonardtown | 240 | 5380000 | 5380999 | G |
| Leonardtown | 240 | 5389000 | 5389999 | G |
| Laurel 236 | 240 | 5476000 | 5476999 | G |
| Layhill | 240 | 5600000 | 5600999 | G |
| Layhill | 240 | 5609000 | 5609999 | G |
| Hyattsville | 240 | 5823000 | 5823999 | G |
| Hyattsville | 240 | 5828000 | 5828999 | G |
| Hyattsville | 240 | 5829000 | 5829999 | G |
| Laurel 236 | 240 | 5838000 | 5838999 | G |
| Silver Spring | 240 | 5956000 | 5956999 | G |
| Waldorf | 240 | 6076000 | 6076999 | G |
| Waldorf | 240 | 6077000 | 6077999 | G |
| Waldorf | 240 | 6078000 | 6078999 | G |
| Capitol Heights | 240 | 6197000 | 6197999 | G |
| Kensington | 240 | 6213000 | 6213999 | G |
| Bethesda | 240 | 6440000 | 6440999 | G |
| Bethesda | 240 | 6441000 | 6441999 | G |
| Bethesda | 240 | 6446000 | 6446999 | G |
| Silver Spring | 240 | 6450000 | 6450999 | G |
| Silver Spring | 240 | 6451000 | 6451999 | G |
| Silver Spring | 240 | 6454000 | 6454999 | G |
| Mechanicsville | 240 | 6520000 | 6520999 | X |
| Mechanicsville | 240 | 6521000 | 6521999 | G |
| Mechanicsville | 240 | 6524000 | 6524999 | G |
| Mechanicsville | 240 | 6525000 | 6525999 | G |
| Mechanicsville | 240 | 6526000 | 6526999 | G |
| Mechanicsville | 240 | 6528000 | 6528999 | G |
| Mechanicsville | 240 | 6529000 | 6529999 | G |
| Hyattsville | 240 | 6678000 | 6678999 | G |
| Damascus 236 | 240 | 6682000 | 6682999 | G |
| Damascus 236 | 240 | 6683000 | 6683999 | G |
| Damascus 236 | 240 | 6685000 | 6685999 | G |
| Damascus 236 | 240 | 6686000 | 6686999 | G |
| Damascus 236 | 240 | 6689000 | 6689999 | G |
| Brandywine | 240 | 6857000 | 6857999 | G |
| Silver Spring | 240 | 7057000 | 7057999 | G |
| Lexington Park-Great Mills | 240 | 7180000 | 7180999 | G |
| Lexington Park-Great Mills | 240 | 7181000 | 7181999 | G |
| Lexington Park-Great Mills | 240 | 7182000 | 7182999 | G |
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