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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 |
|---|---|---|---|---|
| Waldorf | 240 | 5188000 | 5188999 | G |
| Hughesville | 240 | 5282000 | 5282999 | G |
| Capitol Heights | 240 | 5325000 | 5325999 | G |
| Capitol Heights | 240 | 5326000 | 5326999 | G |
| Capitol Heights | 240 | 5327000 | 5327999 | G |
| Bethesda | 240 | 5342000 | 5342999 | G |
| Berwyn Heights | 240 | 5424000 | 5424999 | G |
| Berwyn | 240 | 5537000 | 5537999 | G |
| Kensington | 240 | 5583000 | 5583999 | G |
| Kensington | 240 | 5584000 | 5584999 | G |
| Layhill | 240 | 5606000 | 5606999 | G |
| Layhill | 240 | 5607000 | 5607999 | G |
| Frederick | 240 | 5759000 | 5759999 | G |
| Frederick | 240 | 5784000 | 5784999 | G |
| Hyattsville | 240 | 5825000 | 5825999 | G |
| Hyattsville | 240 | 5826000 | 5826999 | G |
| Hyattsville | 240 | 5827000 | 5827999 | G |
| Waldorf | 240 | 5855000 | 5855999 | G |
| Waldorf | 240 | 5857000 | 5857999 | G |
| Waldorf | 240 | 6072000 | 6072999 | G |
| Waldorf | 240 | 6079000 | 6079999 | G |
| Rockville | 240 | 6147000 | 6147999 | G |
| Hyattsville | 240 | 6158000 | 6158999 | G |
| Capitol Heights | 240 | 6192000 | 6192999 | G |
| Capitol Heights | 240 | 6193000 | 6193999 | G |
| Capitol Heights | 240 | 6194000 | 6194999 | G |
| Capitol Heights | 240 | 6195000 | 6195999 | G |
| Kensington | 240 | 6217000 | 6217999 | G |
| Frederick | 240 | 6298000 | 6298999 | G |
| Bethesda | 240 | 6308000 | 6308999 | G |
| Silver Spring | 240 | 6414000 | 6414999 | G |
| Silver Spring | 240 | 6415000 | 6415999 | G |
| Silver Spring | 240 | 6418000 | 6418999 | G |
| Frederick | 240 | 6510000 | 6510999 | G |
| Frederick | 240 | 6511000 | 6511999 | G |
| Frederick | 240 | 6513000 | 6513999 | G |
| Frederick | 240 | 6515000 | 6515999 | G |
| Gaithersburg | 240 | 6543000 | 6543999 | G |
| Gaithersburg | 240 | 6544000 | 6544999 | G |
| Rockville | 240 | 6602000 | 6602999 | G |
| Hyattsville | 240 | 6671000 | 6671999 | G |
| Hyattsville | 240 | 6672000 | 6672999 | G |
| Kensington | 240 | 6693000 | 6693999 | G |
| Kensington | 240 | 6694000 | 6694999 | G |
| Kensington | 240 | 6696000 | 6696999 | G |
| Kensington | 240 | 6697000 | 6697999 | G |
| Kensington | 240 | 6698000 | 6698999 | G |
| Kensington | 240 | 6699000 | 6699999 | G |
| Silver Spring | 240 | 6707000 | 6707999 | G |
| Silver Spring | 240 | 6708000 | 6708999 | G |
| Brandywine | 240 | 6813000 | 6813999 | G |
| Brandywine | 240 | 6817000 | 6817999 | G |
| Gaithersburg | 240 | 6866000 | 6866999 | G |
| Hyattsville | 240 | 6965000 | 6965999 | G |
| Gaithersburg | 240 | 7020000 | 7020999 | G |
| Laurel 238 | 240 | 7084000 | 7084999 | G |
| Hyattsville | 240 | 7143000 | 7143999 | G |
| Hyattsville | 240 | 7144000 | 7144999 | G |
| Hyattsville | 240 | 7145000 | 7145999 | G |
| Capitol Heights | 240 | 7163000 | 7163999 | G |
| Capitol Heights | 240 | 7192000 | 7192999 | G |
| Ashton 236 | 240 | 7226000 | 7226999 | G |
| Bethesda | 240 | 7434000 | 7434999 | G |
| Damascus 236 | 240 | 7452000 | 7452999 | G |
| Waldorf | 240 | 7547000 | 7547999 | G |
| Laurel 238 | 240 | 7550000 | 7550999 | G |
| Hyattsville | 240 | 7645000 | 7645999 | G |
| Hyattsville | 240 | 7646000 | 7646999 | G |
| Hyattsville | 240 | 7647000 | 7647999 | G |
| Hyattsville | 240 | 7648000 | 7648999 | G |
| Oxon Hill | 240 | 7662000 | 7662999 | G |
| Oxon Hill | 240 | 7664000 | 7664999 | G |
| Hyattsville | 240 | 7703000 | 7703999 | G |
| Hyattsville | 240 | 7704000 | 7704999 | G |
| Hyattsville | 240 | 7705000 | 7705999 | G |
| Hyattsville | 240 | 7706000 | 7706999 | G |
| Hyattsville | 240 | 7707000 | 7707999 | G |
| Hyattsville | 240 | 7708000 | 7708999 | G |
| La Plata | 240 | 7764000 | 7764999 | G |
| Gaithersburg | 240 | 7807000 | 7807999 | G |
| Laurel 236 | 240 | 7865000 | 7865999 | G |
| Laurel 236 | 240 | 7866000 | 7866999 | G |
| Laurel 236 | 240 | 7867000 | 7867999 | G |
| Capitol Heights | 240 | 7886000 | 7886999 | G |
| Capitol Heights | 240 | 7887000 | 7887999 | G |
| Bethesda | 240 | 8003000 | 8003999 | G |
| Bethesda | 240 | 8004000 | 8004999 | G |
| Gaithersburg | 240 | 8014000 | 8014999 | G |
| Gaithersburg | 240 | 8018000 | 8018999 | G |
| Gaithersburg | 240 | 8019000 | 8019999 | G |
| Bethesda | 240 | 8022000 | 8022999 | G |
| Gaithersburg | 240 | 8055000 | 8055999 | G |
| Frederick | 240 | 8155000 | 8155999 | G |
| Frederick | 240 | 8156000 | 8156999 | G |
| Brandywine | 240 | 8237000 | 8237999 | G |
| Hyattsville | 240 | 8253000 | 8253999 | G |
| Hyattsville | 240 | 8254000 | 8254999 | G |
| Capitol Heights | 240 | 8302000 | 8302999 | G |
| Kensington | 240 | 8332000 | 8332999 | G |
| Kensington | 240 | 8333000 | 8333999 | G |
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