Recent prefix assignments
334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026
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 |
|---|---|---|---|---|---|---|
| 2016-04-21 | 782-434 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Canso | — |
| 2016-04-21 | 782-436 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Goldboro | — |
| 2016-04-21 | 782-438 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | Sherbrooke | — |
| 2016-04-21 | 782-439 | not yet reported which blocks → | Bragg Communications Inc. | 4878 | River John | — |
| 2016-04-21 | 816-642 | 0–9 XXXall 10 · 5 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | KANSASCITY | MO |
| 2016-04-21 | 928-326 | 0–9 XXXall 10 · 4 holders which blocks → | SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA | 4146 | FLAGSTAFF | AZ |
| 2016-04-21 | 959-444 | 0–9 XXXall 10 · 3 holders which blocks → | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 539F | WILLIMNTIC | CT |
| 2016-04-21 | 985-251 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - LA | 749E | RACELAND | LA |
| 2016-04-21 | 985-315 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → | ONVOY, LLC - LA | 749E | LOCKPORT | LA |
| 2016-04-21 | 985-615 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - LA | 749E | FOLSOM | LA |
| 2016-04-21 | 985-616 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - LA | 749E | INDEPNDNCE | LA |
| 2016-04-21 | 985-617 | 1XXX2XXX3XXX6XXX7XXX8XXX · 2 holders which blocks → | ONVOY, LLC - LA | 749E | GIBSON | LA |
| 2016-04-20 | 224-724 | 0–9 XXXall 10 · 6 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | SKOKIE | IL |
| 2016-04-20 | 248-500 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MILFDWH LK | MI |
| 2016-04-20 | 346-262 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2016-04-20 | 346-352 | 0–9 XXXall 10 · 4 holders which blocks → | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2016-04-20 | 385-258 | 0–9 XXXall 10 · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - UT | 3231 | SALT LAKE | UT |
| 2016-04-20 | 469-466 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - TX | 903C | DALLAS | TX |
| 2016-04-20 | 470-305 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ATLANTA | GA |
| 2016-04-20 | 603-405 | 0XXX1XXX2XXX6XXX8XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - NH | 8299 | SOMERSWTH | NH |
| 2016-04-20 | 956-540 | 0–9 XXXall 10 · 7 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | MCALLEN | TX |
| 2016-04-19 | 346-238 | 0–9 XXXwhole prefix which blocks → | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7074 | HOUSTON | TX |
| 2016-04-19 | 608-898 | 0–9 XXXall 10 · 7 holders which blocks → | METROPCS, INC. | 5562 | JANESVILLE | WI |
| 2016-04-19 | 609-302 | 0–9 XXXall 10 · 5 holders which blocks → | VERIZON NEW JERSEY, INC. | 9206 | LAWRENCEVL | NJ |
| 2016-04-19 | 978-438 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PEABODY | MA |
| 2016-04-18 | 231-252 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MI | 991E | TRAVERSECY | MI |
| 2016-04-18 | 825-681 | not yet reported which blocks → | Distributel | 081E | Iron Springs | — |
| 2016-04-18 | 825-682 | not yet reported which blocks → | Distributel | 081E | Magrath | — |
| 2016-04-18 | 825-683 | not yet reported which blocks → | Distributel | 081E | Manyberries | — |
| 2016-04-18 | 825-684 | not yet reported which blocks → | Distributel | 081E | Milk River | — |
| 2016-04-18 | 825-685 | not yet reported which blocks → | Distributel | 081E | New Dayton | — |
| 2016-04-18 | 825-686 | not yet reported which blocks → | Distributel | 081E | Nobleford | — |
| 2016-04-18 | 825-687 | not yet reported which blocks → | Distributel | 081E | Picture Butte | — |
| 2016-04-18 | 825-688 | not yet reported which blocks → | Distributel | 081E | Pincher Creek | — |
| 2016-04-18 | 825-689 | not yet reported which blocks → | Distributel | 081E | Raymond | — |
| 2016-04-18 | 825-690 | not yet reported which blocks → | Distributel | 081E | Stand Off | — |
| 2016-04-18 | 825-691 | not yet reported which blocks → | Distributel | 081E | Stirling | — |
| 2016-04-18 | 825-692 | not yet reported which blocks → | Distributel | 081E | Taber | — |
| 2016-04-18 | 825-693 | not yet reported which blocks → | Distributel | 081E | Vauxhall | — |
| 2016-04-18 | 825-694 | not yet reported which blocks → | Distributel | 081E | Warner | — |
| 2016-04-18 | 825-695 | not yet reported which blocks → | Distributel | 081E | Waterton Park | — |
| 2016-04-18 | 825-696 | not yet reported which blocks → | Distributel | 081E | Wrentham | — |
| 2016-04-15 | 313-314 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MI | 991E | DETROITZN3 | MI |
| 2016-04-15 | 313-636 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MI | 991E | DETROITZN4 | MI |
| 2016-04-15 | 469-796 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | MCKINNEY | TX |
| 2016-04-15 | 619-329 | 0–9 XXXall 10 · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | SNDG SNDG | CA |
| 2016-04-15 | 619-343 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | SNDG SNDG | CA |
| 2016-04-14 | 214-903 | 0–9 XXXall 10 · 6 holders which blocks → | T-MOBILE USA, INC. | 6529 | WAXAHACHIE | TX |
| 2016-04-14 | 306-271 | not yet reported which blocks → | Distributel | 081E | Regina | — |
| 2016-04-14 | 313-284 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - MI | 991E | DETROITZN2 | MI |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.