NumberResearchRecent thousands-block assignments
76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 2026-04
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, last 30 days
New assignments by month
Sep 2026
Aug 2026
Jul 2026
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May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2005-03-28 | 773-816-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2005-03-25 | 310-227-5XXX | T-MOBILE USA, INC. | 6529 | EL SEGUNDO | CA |
| 2005-03-25 | 323-543-1XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2005-03-25 | 323-543-3XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2005-03-25 | 323-543-6XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2005-03-25 | 323-551-7XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2005-03-25 | 323-551-8XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2005-03-25 | 562-405-7XXX | T-MOBILE USA, INC. | 6529 | NORWALK | CA |
| 2005-03-25 | 619-519-4XXX | T-MOBILE USA, INC. | 6529 | CORONADO | CA |
| 2005-03-25 | 760-412-1XXX | T-MOBILE USA, INC. | 6529 | BRAWLEY | CA |
| 2005-03-25 | 916-248-3XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-25 | 916-248-6XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-25 | 916-248-9XXX | T-MOBILE USA, INC. | 6529 | SCRM MAIN | CA |
| 2005-03-24 | 210-454-0XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-24 | 210-454-9XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-24 | 325-227-9XXX | T-MOBILE USA, INC. | 6529 | SAN ANGELO | TX |
| 2005-03-24 | 562-271-3XXX | T-MOBILE USA, INC. | 6529 | PICORIVERA | CA |
| 2005-03-24 | 630-903-8XXX | T-MOBILE USA, INC. | 6529 | ELMHURST | IL |
| 2005-03-24 | 630-903-9XXX | T-MOBILE USA, INC. | 6529 | ELMHURST | IL |
| 2005-03-24 | 806-544-1XXX | T-MOBILE USA, INC. | 6529 | LUBBOCK | TX |
| 2005-03-24 | 806-544-2XXX | T-MOBILE USA, INC. | 6529 | LUBBOCK | TX |
| 2005-03-24 | 806-729-4XXX | T-MOBILE USA, INC. | 6529 | PLAINVIEW | TX |
| 2005-03-24 | 808-489-2XXX | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| 2005-03-24 | 915-443-0XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2005-03-24 | 915-443-5XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2005-03-24 | 915-443-8XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2005-03-24 | 915-799-2XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2005-03-24 | 915-799-3XXX | T-MOBILE USA, INC. | 6529 | EL PASO | TX |
| 2005-03-23 | 210-471-9XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 210-878-6XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 210-878-7XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 210-878-8XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 210-878-9XXX | T-MOBILE USA, INC. | 6529 | SANANTONIO | TX |
| 2005-03-23 | 213-291-5XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 01 | CA |
| 2005-03-23 | 316-889-4XXX | T-MOBILE USA, INC. | 6529 | EL DORADO | KS |
| 2005-03-23 | 316-889-5XXX | T-MOBILE USA, INC. | 6529 | EL DORADO | KS |
| 2005-03-23 | 316-889-6XXX | T-MOBILE USA, INC. | 6529 | EL DORADO | KS |
| 2005-03-23 | 405-334-9XXX | T-MOBILE USA, INC. | 6529 | STILLWATER | OK |
| 2005-03-23 | 510-229-7XXX | T-MOBILE USA, INC. | 6529 | OKLD BKLY | CA |
| 2005-03-23 | 559-309-1XXX | T-MOBILE USA, INC. | 6529 | HANFORD | CA |
| 2005-03-23 | 559-367-8XXX | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-03-23 | 559-367-9XXX | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-03-23 | 575-637-5XXX | T-MOBILE USA, INC. | 6529 | ROSWELL | NM |
| 2005-03-23 | 815-573-2XXX | T-MOBILE USA, INC. | 6529 | KANKAKEE | IL |
| 2005-03-23 | 815-573-3XXX | T-MOBILE USA, INC. | 6529 | KANKAKEE | IL |
| 2005-03-22 | 206-788-5XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2005-03-22 | 206-788-6XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2005-03-22 | 206-788-7XXX | T-MOBILE USA, INC. | 6529 | SEATTLE | WA |
| 2005-03-22 | 209-241-6XXX | T-MOBILE USA, INC. | 6529 | MODESTO | CA |
| 2005-03-22 | 209-244-5XXX | T-MOBILE USA, INC. | 6529 | STOCKTON | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.