NumberResearchRecent thousands-block assignments
46 blocks assigned in January 2026 · from the daily NANPA thousands-block report, 09/18/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, January 2026
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-01-22 | 562-870-9XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2026-01-22 | 870-564-9XXX | T-MOBILE USA, INC. | 6529 | DELL | AR |
| 2026-01-20 | 253-443-9XXX | T-MOBILE USA, INC. | 6529 | AUBURN | WA |
| 2026-01-16 | 442-496-9XXX | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2026-01-13 | 573-451-4XXX | T-MOBILE USA, INC. | 6529 | ST ROBERT | MO |
| 2026-01-13 | 636-286-3XXX | T-MOBILE USA, INC. | 6529 | UNION | MO |
| 2026-01-09 | 520-764-4XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2026-01-09 | 520-765-9XXX | T-MOBILE USA, INC. | 6529 | CASAGRANDE | AZ |
| 2026-01-09 | 775-294-8XXX | T-MOBILE USA, INC. | 6529 | FALLON | NV |
| 2026-01-09 | 775-568-1XXX | T-MOBILE USA, INC. | 6529 | WINNEMUCCA | NV |
| 2026-01-09 | 775-585-9XXX | T-MOBILE USA, INC. | 6529 | ELKO | NV |
| 2026-01-09 | 775-592-0XXX | T-MOBILE USA, INC. | 6529 | SWEETWATER | NV |
| 2026-01-09 | 775-592-9XXX | T-MOBILE USA, INC. | 6529 | SWEETWATER | NV |
| 2026-01-09 | 775-866-9XXX | T-MOBILE USA, INC. | 6529 | FALLON | NV |
| 2026-01-08 | 425-592-9XXX | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
| 2026-01-08 | 509-718-9XXX | T-MOBILE USA, INC. | 6529 | ELLENSBURG | WA |
| 2026-01-07 | 406-617-9XXX | T-MOBILE USA, INC. | 6529 | BILLINGS | MT |
| 2026-01-07 | 406-831-2XXX | T-MOBILE USA, INC. | 6529 | BILLINGS | MT |
| 2026-01-07 | 530-775-9XXX | T-MOBILE USA, INC. | 6529 | YREKA | CA |
| 2026-01-07 | 808-279-6XXX | T-MOBILE USA, INC. | 6529 | HILO | HI |
| 2026-01-06 | 307-482-0XXX | T-MOBILE USA, INC. | 6529 | WHEATLAND | WY |
| 2026-01-06 | 307-485-3XXX | T-MOBILE USA, INC. | 6529 | CASPER | WY |
| 2026-01-06 | 307-485-4XXX | T-MOBILE USA, INC. | 6529 | CASPER | WY |
| 2026-01-06 | 350-222-5XXX | T-MOBILE USA, INC. | 6529 | HUGHSON | CA |
| 2026-01-06 | 385-621-9XXX | T-MOBILE USA, INC. | 6529 | MURRAY | UT |
| 2026-01-06 | 530-998-0XXX | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2026-01-06 | 530-998-2XXX | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2026-01-06 | 530-998-3XXX | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2026-01-06 | 541-707-3XXX | T-MOBILE USA, INC. | 6529 | REEDSPORT | OR |
| 2026-01-06 | 541-716-2XXX | T-MOBILE USA, INC. | 6529 | HOOD RIVER | OR |
| 2026-01-06 | 562-701-3XXX | T-MOBILE USA, INC. | 6529 | ALAMITOS | CA |
| 2026-01-06 | 636-298-3XXX | T-MOBILE USA, INC. | 6529 | MANCHESTER | MO |
| 2026-01-06 | 805-904-2XXX | T-MOBILE USA, INC. | 6529 | ARROYOGRND | CA |
| 2026-01-06 | 808-663-6XXX | T-MOBILE USA, INC. | 6529 | LIHUE | HI |
| 2026-01-06 | 808-663-7XXX | T-MOBILE USA, INC. | 6529 | LIHUE | HI |
| 2026-01-06 | 925-441-2XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-01-06 | 925-554-5XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-01-06 | 925-554-9XXX | T-MOBILE USA, INC. | 6529 | ANTIOCH | CA |
| 2026-01-06 | 949-881-0XXX | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2026-01-06 | 949-948-8XXX | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2026-01-06 | 949-948-9XXX | T-MOBILE USA, INC. | 6529 | NEWPORTBCH | CA |
| 2026-01-06 | 951-649-5XXX | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2026-01-06 | 951-649-7XXX | T-MOBILE USA, INC. | 6529 | ARLINGTON | CA |
| 2026-01-05 | 505-602-7XXX | T-MOBILE USA, INC. | 6529 | SANTA FE | NM |
| 2026-01-05 | 567-490-1XXX | T-MOBILE USA, INC. | 6529 | ASHLAND | OH |
| 2026-01-05 | 730-267-3XXX | T-MOBILE USA, INC. | 6529 | BELLEVILLE | IL |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.