Recent prefix assignments
347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2017-07-05 | 702-780 | 0–9 XXXall 10 · 4 holders which blocks → | VONAGE AMERICA LLC | 197D | LAS VEGAS | NV |
| 2017-07-03 | 310-682 | 0–9 XXXwhole prefix which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | HAWTHORNE | CA |
| 2017-07-03 | 314-347 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MO | 993E | SAPPINGTON | MO |
| 2017-07-03 | 315-260 | 0–9 XXXall 10 · 6 holders which blocks → | WINDSTREAM NEW YORK, INC. - FULTON | 0106 | MUNNSVILLE | NY |
| 2017-07-03 | 315-907 | 0–9 XXXall 10 · 5 holders which blocks → | VONAGE AMERICA LLC | 197D | SYRACUSE | NY |
| 2017-07-03 | 352-451 | 0–9 XXXall 10 · 5 holders which blocks → | VONAGE AMERICA LLC | 197D | GAINESVL | FL |
| 2017-07-03 | 417-346 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MO | 993E | NEOSHO | MO |
| 2017-07-03 | 573-524 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MO | 993E | MACKSCREEK | MO |
| 2017-07-03 | 929-457 | 0–9 XXXall 10 · 7 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NY | 997E | NWYRCYZN06 | NY |
| 2017-06-30 | 315-978 | 0–9 XXXall 10 · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | CENTRAL SQ | NY |
| 2017-06-30 | 334-661 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | DOTHAN | AL |
| 2017-06-30 | 424-404 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | REDONDO | CA |
| 2017-06-30 | 540-403 | 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → | AIRUS, INC. - VA | 726H | CULPEPER | VA |
| 2017-06-30 | 540-926 | 0–9 XXXall 10 · 5 holders which blocks → | AIRUS, INC. - VA | 726H | ROANOKE | VA |
| 2017-06-30 | 561-365 | 0–9 XXXall 10 · 5 holders which blocks → | PAETEC ITEL, LLC | 829J | WPALMBEACH | FL |
| 2017-06-30 | 564-397 | 0–9 XXXall 10 · 2 holders which blocks → | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7173 | VANCOUVER | WA |
| 2017-06-30 | 661-409 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS NETWORKS, LLC | 899D | PLDL PLDL | CA |
| 2017-06-30 | 661-417 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS NETWORKS, LLC | 899D | SNCA NHCS | CA |
| 2017-06-30 | 719-675 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COLORDOSPG | CO |
| 2017-06-30 | 720-594 | 0–9 XXXall 10 · 3 holders which blocks → | AIRUS, INC. - CO | 019J | DENVER | CO |
| 2017-06-30 | 765-290 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | ROSEDALE | IN |
| 2017-06-30 | 804-401 | 0–9 XXXall 10 · 5 holders which blocks → | AIRUS, INC. - VA | 726H | RICHMOND | VA |
| 2017-06-30 | 812-975 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | EDINBURGH | IN |
| 2017-06-29 | 229-302 | 0–9 XXXall 10 · 4 holders which blocks → | CITY OF ALBANY D/B/A ALBANY UTILITY BOARD | 720H | ALBANY | GA |
| 2017-06-29 | 319-259 | 0–9 XXXall 10 · 9 holders which blocks → | TELNYX LLC | 073H | IOWA CITY | IA |
| 2017-06-29 | 334-554 | 0–9 XXXall 10 · 6 holders which blocks → | MCC TELEPHONY LLC | 593K | ELBA | AL |
| 2017-06-29 | 385-271 | 0–9 XXXall 10 · 2 holders which blocks → | VONAGE AMERICA LLC | 197D | SALT LAKE | UT |
| 2017-06-29 | 470-795 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - GA | 983E | ATLANTA NW | GA |
| 2017-06-29 | 475-242 | 0–9 XXXall 10 · 4 holders which blocks → | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 539F | REDDING | CT |
| 2017-06-29 | 912-405 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - GA | 983E | VIDALIA | GA |
| 2017-06-29 | 931-655 | 0XXX1XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | PETERSBURG | TN |
| 2017-06-29 | 980-276 | 0–9 XXXall 10 · 6 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | TROUTMAN | NC |
| 2017-06-28 | 540-799 | 0–9 XXXall 10 · 8 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | RAPHINE | VA |
| 2017-06-28 | 971-420 | 0–9 XXXall 10 · 3 holders which blocks → | VONAGE AMERICA LLC | 197D | PORTLAND | OR |
| 2017-06-27 | 207-302 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | RAYMOND | ME |
| 2017-06-27 | 213-441 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 07 | CA |
| 2017-06-27 | 323-968 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | LSAN DA 05 | CA |
| 2017-06-27 | 614-927 | 0–9 XXXall 10 · 5 holders which blocks → | VONAGE AMERICA LLC | 197D | COLUMBUS | OH |
| 2017-06-27 | 616-729 | 0–9 XXXall 10 · 3 holders which blocks → | VONAGE AMERICA LLC | 197D | GRAND RPDS | MI |
| 2017-06-27 | 650-885 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PALO ALTO | CA |
| 2017-06-27 | 669-454 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SUNNYVALE | CA |
| 2017-06-27 | 769-207 | 0–9 XXXall 10 · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA MS - LLC | 458C | HATTIESBG | MS |
| 2017-06-27 | 825-345 | not yet reported which blocks → | Bragg Communications Inc. | 421G | Grande Prairie | — |
| 2017-06-27 | 956-962 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DOLORES | TX |
| 2017-06-26 | 215-936 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN43 | PA |
| 2017-06-26 | 236-327 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Powell River | — |
| 2017-06-26 | 336-960 | 0–9 XXXall 10 · 2 holders which blocks → | RIVERSTREET COMMUNICATIONS OF NO CAROLINA - NC | 769H | LEXINGTON | NC |
| 2017-06-26 | 587-627 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Stettler | — |
| 2017-06-26 | 646-986 | 0–9 XXXwhole prefix which blocks → | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2017-06-26 | 646-988 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.