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 |
|---|---|---|---|---|---|---|
| 2017-05-12 | 973-554 | 0–9 XXXall 10 · 7 holders which blocks → | CABLEVISION LIGHTPATH, INC. - NJ | 4948 | ROCKAWAY | NJ |
| 2017-05-12 | 984-989 | 0–9 XXXall 10 · 4 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | CLAYTON | NC |
| 2017-05-11 | 236-823 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Gulf Islands | — |
| 2017-05-11 | 249-982 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Sault Ste. Marie | — |
| 2017-05-11 | 249-983 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | North Bay | — |
| 2017-05-11 | 332-777 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC- NY | 384C | NWYRCYZN01 | NY |
| 2017-05-11 | 343-481 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Iroquois | — |
| 2017-05-11 | 343-482 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Williamsburg | — |
| 2017-05-11 | 343-982 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brockville | — |
| 2017-05-11 | 417-402 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2017-05-11 | 470-347 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | 6540 | NEWNAN | GA |
| 2017-05-11 | 470-591 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | 6540 | ATLANTA | GA |
| 2017-05-11 | 470-615 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - GA | 983E | ATLANTA SO | GA |
| 2017-05-11 | 548-980 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Goderich | — |
| 2017-05-11 | 770-247 | 0–9 XXXwhole prefix which blocks → | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NW | GA |
| 2017-05-11 | 782-888 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Halifax | — |
| 2017-05-11 | 782-972 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Yarmouth | — |
| 2017-05-11 | 782-978 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | New Glasgow | — |
| 2017-05-10 | 302-274 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WILMINGTON | DE |
| 2017-05-10 | 336-967 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NC | 998E | KERNERSVL | NC |
| 2017-05-10 | 442-334 | 0–9 XXXall 10 · 7 holders which blocks → | TELNYX LLC | 073H | PALMDESERT | CA |
| 2017-05-10 | 502-591 | 0–9 XXXall 10 · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GEORGETOWN | KY |
| 2017-05-10 | 606-323 | 0XXX1XXX3XXX4XXX5XXX6XXX8XXX · 7 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | INEZ | KY |
| 2017-05-10 | 612-268 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MN | 980E | TWINCITIES | MN |
| 2017-05-10 | 681-339 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - WV | 080F | PIEDMONT | WV |
| 2017-05-10 | 681-667 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - WV | 080F | SHINNSTON | WV |
| 2017-05-10 | 774-341 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MA | 990E | HOLLISTON | MA |
| 2017-05-10 | 904-362 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | JACKSONVL | FL |
| 2017-05-10 | 959-265 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - CT | 639C | ESSEX | CT |
| 2017-05-10 | 959-335 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - CT | 639C | NORFOLK | CT |
| 2017-05-09 | 252-306 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - NC | 998E | WELCH | NC |
| 2017-05-09 | 267-990 | 0–9 XXXall 10 · 2 holders which blocks → | COMMIO, LLC | 939H | PHLDLPHZN1 | PA |
| 2017-05-09 | 272-359 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - PA | 002F | GIRARDVL | PA |
| 2017-05-09 | 272-867 | 0–9 XXXall 10 · 4 holders which blocks → | COMMIO, LLC | 939H | SCRANTON | PA |
| 2017-05-09 | 336-966 | 0–9 XXXwhole prefix which blocks → | LEVEL 3 COMMUNICATIONS, LLC - NC | 3235 | WINSTN SAL | NC |
| 2017-05-09 | 386-220 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | NWSMYRNBCH | FL |
| 2017-05-09 | 463-200 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - IN | 105F | WESTNEWTON | IN |
| 2017-05-09 | 507-575 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks → | MIDCONTINENT COMMUNICATIONS - MN | 429A | CANBY | MN |
| 2017-05-09 | 518-413 | 0XXX1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC- NY | 384C | BOLTON LDG | NY |
| 2017-05-09 | 717-210 | 0–9 XXXall 10 · 6 holders which blocks → | COMMIO, LLC | 939H | HARISBGZN1 | PA |
| 2017-05-09 | 814-900 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | COMMIO, LLC | 939H | ALTOONA | PA |
| 2017-05-09 | 878-670 | 0–9 XXXall 10 · 3 holders which blocks → | COMMIO, LLC | 939H | PTTSBGZON1 | PA |
| 2017-05-08 | 207-742 | 0XXX1XXX2XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | FAIRFIELD | ME |
| 2017-05-08 | 432-220 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | RANKIN | TX |
| 2017-05-08 | 581-653 | not yet reported which blocks → | Videotron Ltd. | 8306 | Saint-Georges-de-Beauce | — |
| 2017-05-08 | 646-889 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| 2017-05-08 | 831-309 | 3XXX7XXX8XXX · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | CARMEL | CA |
| 2017-05-08 | 856-922 | 0–9 XXXwhole prefix which blocks → | BLOCK LINE SYSTEMS, LLC - NJ | 835E | MERCHANTVL | NJ |
| 2017-05-08 | 873-353 | not yet reported which blocks → | Bell Mobility | 6574 | Ottawa-Hull | — |
| 2017-05-05 | 210-640 | 0–9 XXXall 10 · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | SANANTONIO | TX |
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.