Recent prefix assignments
1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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 |
|---|---|---|---|---|---|---|
| 2021-07-21 | 936-766 | 0–9 XXXall 10 · 2 holders which blocks → | FRACTEL, LLC | 965H | CONROE | TX |
| 2021-07-06 | 936-313 | 3XXX4XXX which blocks → | ONVOY, LLC - TX | 903C | RAYWOOD | TX |
| 2021-05-10 | 936-388 | 2XXX3XXX6XXX7XXX8XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | SHIRO | TX |
| 2021-04-06 | 936-397 | 0–9 XXXall 10 · 5 holders which blocks → | TON80 COMMUNICATIONS, LLC | 516J | LIBERTY | TX |
| 2021-03-11 | 936-316 | 1XXX6XXX · 2 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | GRAPELAND | TX |
| 2021-03-02 | 936-599 | 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | SHEPHERD | TX |
| 2021-03-02 | 936-677 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | PLANTERSVL | TX |
| 2021-03-02 | 936-688 | 1XXX2XXX3XXX6XXX7XXX8XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | BROADDUS | TX |
| 2021-03-02 | 936-799 | 1XXX7XXX8XXX9XXX · 3 holders which blocks → | FRACTEL, LLC | 965H | HULL | TX |
| 2021-01-28 | 936-810 | 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - TX | 903C | TIMPSON | TX |
| 2021-01-13 | 936-667 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | NORMANGEE | TX |
| 2021-01-13 | 936-786 | 6XXX7XXX · 2 holders which blocks → | FRACTEL, LLC | 965H | EVERGREEN | TX |
| 2021-01-08 | 936-308 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 3 holders which blocks → | ONVOY, LLC - TX | 903C | DIBOLL | TX |
| 2021-01-04 | 936-363 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - TX | 903C | CONROE | TX |
| 2020-12-28 | 936-910 | 0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 4 holders which blocks → | ONVOY, LLC - TX | 903C | KENNARD | TX |
| 2020-12-01 | 936-285 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NAVASOTA | TX |
| 2020-11-23 | 936-325 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - TX | 903C | PRAIRIE VW | TX |
| 2020-10-19 | 936-955 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - TX | 903C | LUFKIN | TX |
| 2020-07-30 | 936-299 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LUFKIN | TX |
| 2020-07-09 | 936-386 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | AUSTONIO | TX |
| 2020-07-09 | 936-842 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | LOVELADY | TX |
| 2020-07-09 | 936-877 | 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → | FRACTEL, LLC | 965H | ALTO | TX |
| 2020-07-02 | 936-946 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → | FRACTEL, LLC | 965H | REKLAW | TX |
| 2020-06-29 | 936-758 | 0–9 XXXall 10 · 6 holders which blocks → | FRACTEL, LLC | 965H | CHIRENO | TX |
| 2020-06-17 | 936-345 | 0XXX2XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | FRACTEL, LLC | 965H | DEVERS | TX |
| 2020-01-09 | 936-297 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MONTGOMERY | TX |
| 2019-10-16 | 936-289 | 2XXX3XXX6XXX7XXX9XXX · 2 holders which blocks → | ONVOY, LLC - TX | 903C | APPLE SPG | TX |
| 2019-10-16 | 936-292 | 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - TX | 903C | ETOILE | TX |
| 2019-10-16 | 936-296 | 1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | ONVOY, LLC - TX | 903C | WELLS | TX |
| 2019-08-05 | 936-529 | 0–9 XXXall 10 · 3 holders which blocks → | FRACTEL, LLC | 965H | CONROE | TX |
| 2019-07-25 | 936-930 | 0XXX3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → | ONVOY, LLC - TX | 903C | WASHINGTON | TX |
| 2019-06-17 | 936-935 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - TX | 903C | NORTHZULCH | TX |
| 2019-06-17 | 936-937 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → | ONVOY, LLC - TX | 903C | HILLTOPLKS | TX |
| 2019-06-17 | 936-939 | 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - TX | 903C | IOLA | TX |
| 2019-04-08 | 936-290 | 0–9 XXXall 10 · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | CONROE | TX |
| 2019-01-25 | 936-284 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → | CSC VOICE, LLC | 612K | NEWWAVERLY | TX |
| 2018-10-18 | 936-286 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | CONROE | TX |
| 2018-10-10 | 936-283 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CONROE | TX |
| 2018-04-20 | 936-280 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - TX | 004F | CENTER | TX |
| 2018-02-27 | 936-278 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | WINDSTREAM SUGAR LAND, LLC | 2147 | WATERWOOD | TX |
| 2018-02-27 | 936-279 | 0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | WINDSTREAM SUGAR LAND, LLC | 2147 | GARRISON | TX |
| 2018-02-22 | 936-306 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - TX | 903C | NAVASOTA | TX |
| 2018-02-01 | 936-282 | 0–9 XXXall 10 · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | CONROE | TX |
| 2017-09-26 | 936-272 | 0–9 XXXall 10 · 6 holders which blocks → | BANDWIDTH.COM CLEC, LLC - TX | 004F | WILLIS | TX |
| 2017-08-17 | 936-268 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → | EASTEX CELCO, LLC - TX | 690H | LIVINGSTON | TX |
| 2017-06-16 | 936-263 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | CONROE | TX |
| 2017-05-19 | 936-255 | 0–9 XXXall 10 · 2 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | LUFKIN | TX |
| 2017-02-03 | 936-259 | 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | CENTURYLINK COMMUNICATIONS, LLC | 508J | GROVETON | TX |
| 2016-08-31 | 936-320 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONROE | TX |
| 2016-07-06 | 936-265 | 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → | ONVOY, LLC - TX | 903C | SHIRO | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.