District of Columbia, United States
Eastern Time
10:20 AM
Area Code
771
State / Province
District of Columbia
Country
United States
Time Zone
Eastern Time
Area code 771 covers 1 city and community across District of Columbia, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+17715550100">+17715550100</a><a href="tel:+17715550199">+17715550199</a>Look up which exchange in District of Columbia a specific 771 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
70 active prefixes in this area code, assigned as 770 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–100 of 770
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 771-200 | 0 | Washington Zone 1 | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC (6402) | WASKDCFNAMD | 236 | — | — |
| 771-200 | 1 | Washington Zone 1 | Wireless | ONVOY SPECTRUM, LLC (624H) | WASHDCSWMMD | 236 | — | — |
| 771-200 | 2 | Washington Zone 1 | Wireless | ONVOY SPECTRUM, LLC (624H) | WASHDCSWMMD | 236 | — | — |
| 771-200 | 3 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-200 | 4 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-200 | 5 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-200 | 6 | Washington Zone 1 | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC (6402) | WASKDCFNAMD | 236 | — | — |
| 771-200 | 7 | Washington Zone 1 | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC (6402) | WASKDCFNAMD | 236 | — | — |
| 771-200 | 8 | Washington Zone 1 | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC (6402) | WASKDCFNAMD | 236 | — | — |
| 771-200 | 9 | Washington Zone 1 | Landline or VoIP | METROPCS, INC. (5562) | BELTSVILLE | 236 | — | — |
| 771-200 | A | Washington Zone 1 | Landline or VoIP | METROPCS, INC. (5562) | BELTSVILLE | 236 | — | — |
| 771-201 | 0 | Washington Zone 1 | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC (6402) | WASKDCFNAMD | 236 | — | — |
| 771-201 | 1 | Washington Zone 1 | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC (6402) | WASKDCFNAMD | 236 | — | — |
| 771-201 | 2 | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 771-201 | 3 | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 771-201 | 4 | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 771-201 | 5 | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 771-201 | 6 | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 771-201 | 7 | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 771-201 | 8 | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 771-201 | 9 | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 771-201 | A | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 771-202 | 0 | Washington Zone 1 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 771-202 | 1 | Washington Zone 1 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 771-202 | 2 | Washington Zone 1 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 771-202 | 3 | Washington Zone 1 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 771-202 | 4 | Washington Zone 1 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 771-202 | 5 | Washington Zone 1 | Landline or VoIP | PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC (275F) | WASHINGTON | 236 | — | — |
| 771-202 | 6 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-202 | 7 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-202 | 8 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-202 | 9 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-202 | A | Washington Zone 1 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 771-203 | 0 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-203 | 1 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-203 | 2 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-203 | 3 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-203 | 4 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-203 | 5 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-203 | 6 | Washington Zone 1 | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - DC (7529) | WASHINGTON | 236 | — | — |
| 771-203 | 7 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-203 | 8 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-203 | 9 | Washington Zone 1 | Landline or VoIP | ONVOY, LLC - DC (850D) | TYSONS CORNER | 236 | — | — |
| 771-203 | A | Washington Zone 1 | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - DC (7529) | WASHINGTON | 236 | — | — |
| 771-204 | 0 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | 1 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | 2 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | 3 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | 4 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | 5 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | 6 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | 7 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | 8 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | 9 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-204 | A | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 0 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 1 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 2 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 3 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 4 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 5 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 6 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 7 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 8 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | 9 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-205 | A | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 0 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 1 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 2 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 3 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 4 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 5 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 6 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 7 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 8 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | 9 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-206 | A | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 0 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 1 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 2 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 3 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 4 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 5 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 6 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 7 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 8 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | 9 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-207 | A | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-208 | 0 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-208 | 1 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-208 | 2 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-208 | 3 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-208 | 4 | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-208 | 5 | Washington Zone 1 | Landline or VoIP | PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC (275F) | WASHINGTON | 236 | — | — |
| 771-208 | 6 | Washington Zone 1 | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7229) | WASHINGTON | 236 | — | — |
| 771-208 | 7 | Washington Zone 1 | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - DC (6117) | MC LEAN | 236 | — | — |
| 771-208 | 8 | Washington Zone 1 | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - DC (6117) | MC LEAN | 236 | — | — |
| 771-208 | 9 | Washington Zone 1 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 771-208 | A | Washington Zone 1 | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - DC (074F) | WASHDCDP8MD | 236 | — | — |
| 771-209 | 0 | Washington Zone 1 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
70
Assignment Blocks
770
Rate Centers
1
Carriers of Record
24
| Type | Blocks | Share |
|---|---|---|
| Landline or VoIP | 566 | 74% |
| Wireless | 204 | 26% |
| Carrier | Blocks |
|---|---|
| ONVOY, LLC - DC | 220 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 100 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - DC | 88 |
| BANDWIDTH.COM CLEC, LLC - DC | 81 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 67 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC | 62 |
| OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 44 |
| ONVOY SPECTRUM, LLC | 23 |
| LEVEL 3 COMMUNICATIONS, LLC - DC | 13 |
| TELNYX LLC | 13 |
| 14 other carriers | 59 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| Washington Zone 1 | 70 | 770 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 771 is a North American Numbering Plan (NANP) telephone area code assigned to District of Columbia, United States. It is one of 2 area codes serving District of Columbia. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 771 is an active North American Numbering Plan (NANP) area code, currently assigned to District of Columbia, United States. It is safe to answer or dial calls using this area code.
Area code 771 covers 1 city and community in District of Columbia, including Washington. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 771 area code observe Eastern Time (IANA timezone: America/New_York). Eastern Time is UTC−5 in winter (EST) and UTC−4 in summer (EDT). When placing a call to a 771 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within District of Columbia, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 771 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 771 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 771 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +17715550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.