NumberResearchRecent thousands-block assignments
76 blocks assigned in the last 30 days · 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, last 30 days
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2003-04-02 | 562-842-8XXX | T-MOBILE USA, INC. | 6529 | PICORIVERA | CA |
| 2003-04-02 | 562-842-9XXX | T-MOBILE USA, INC. | 6529 | PICORIVERA | CA |
| 2003-04-02 | 708-271-7XXX | T-MOBILE USA, INC. | 6529 | HARVEY | IL |
| 2003-04-02 | 760-524-3XXX | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2003-04-02 | 760-524-4XXX | T-MOBILE USA, INC. | 6529 | VICTORVL | CA |
| 2003-04-02 | 760-712-0XXX | T-MOBILE USA, INC. | 6529 | OCSD OCSD | CA |
| 2003-04-02 | 760-712-1XXX | T-MOBILE USA, INC. | 6529 | OCSD OCSD | CA |
| 2003-04-02 | 818-979-4XXX | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA |
| 2003-04-01 | 214-493-9XXX | T-MOBILE USA, INC. | 6529 | IRVING | TX |
| 2003-04-01 | 951-258-5XXX | T-MOBILE USA, INC. | 6529 | CORONA | CA |
| 2003-04-01 | 951-258-6XXX | T-MOBILE USA, INC. | 6529 | CORONA | CA |
| 2003-04-01 | 951-258-7XXX | T-MOBILE USA, INC. | 6529 | CORONA | CA |
| 2003-04-01 | 951-543-2XXX | T-MOBILE USA, INC. | 6529 | RIVERSIDE | CA |
| 2003-04-01 | 951-543-3XXX | T-MOBILE USA, INC. | 6529 | RIVERSIDE | CA |
| 2003-04-01 | 951-543-5XXX | T-MOBILE USA, INC. | 6529 | RIVERSIDE | CA |
| 2003-04-01 | 951-543-8XXX | T-MOBILE USA, INC. | 6529 | RIVERSIDE | CA |
| 2003-04-01 | 951-905-9XXX | T-MOBILE USA, INC. | 6529 | RIVERSIDE | CA |
| 2003-03-27 | 636-299-3XXX | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2003-03-26 | 630-631-8XXX | T-MOBILE USA, INC. | 6529 | AURORA | IL |
| 2003-03-26 | 630-631-9XXX | T-MOBILE USA, INC. | 6529 | AURORA | IL |
| 2003-03-26 | 630-930-7XXX | T-MOBILE USA, INC. | 6529 | ELMHURST | IL |
| 2003-03-26 | 630-930-8XXX | T-MOBILE USA, INC. | 6529 | ELMHURST | IL |
| 2003-03-26 | 630-930-9XXX | T-MOBILE USA, INC. | 6529 | ELMHURST | IL |
| 2003-03-25 | 574-301-9XXX | T-MOBILE USA, INC. | 6529 | BREMEN | IN |
| 2003-03-19 | 708-253-7XXX | T-MOBILE USA, INC. | 6529 | TINLEYPARK | IL |
| 2003-03-19 | 708-323-8XXX | T-MOBILE USA, INC. | 6529 | CHICAGOHTS | IL |
| 2003-03-19 | 773-306-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN08 | IL |
| 2003-03-17 | 626-216-5XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2003-03-17 | 626-216-6XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2003-03-17 | 626-216-7XXX | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2003-03-17 | 773-306-8XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN08 | IL |
| 2003-03-13 | 818-462-3XXX | T-MOBILE USA, INC. | 6529 | RESEDA | CA |
| 2003-03-13 | 818-921-0XXX | T-MOBILE USA, INC. | 6529 | RESEDA | CA |
| 2003-03-13 | 818-921-5XXX | T-MOBILE USA, INC. | 6529 | RESEDA | CA |
| 2003-03-13 | 940-399-8XXX | T-MOBILE USA, INC. | 6529 | DECATUR | TX |
| 2003-03-12 | 661-674-7XXX | T-MOBILE USA, INC. | 6529 | LANCASTER | CA |
| 2003-03-12 | 661-674-9XXX | T-MOBILE USA, INC. | 6529 | LANCASTER | CA |
| 2003-03-10 | 314-814-0XXX | T-MOBILE USA, INC. | 6529 | ST LOUIS | MO |
| 2003-03-10 | 773-615-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2003-03-10 | 773-715-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN06 | IL |
| 2003-03-10 | 818-256-7XXX | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA |
| 2003-03-10 | 818-256-9XXX | T-MOBILE USA, INC. | 6529 | SNFN SNFN | CA |
| 2003-03-06 | 219-512-2XXX | T-MOBILE USA, INC. | 6529 | GARY | IN |
| 2003-03-06 | 310-303-0XXX | T-MOBILE USA, INC. | 6529 | REDONDO | CA |
| 2003-03-06 | 559-312-0XXX | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2003-03-06 | 559-312-3XXX | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2003-03-06 | 559-312-4XXX | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2003-03-06 | 559-312-5XXX | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2003-03-06 | 559-312-6XXX | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2003-03-06 | 559-312-7XXX | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
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.