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 |
|---|---|---|---|---|---|
| 2003-08-06 | 602-384-4XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-384-5XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-384-7XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 619-864-4XXX | T-MOBILE USA, INC. | 6529 | CHULAVISTA | CA |
| 2003-08-06 | 630-631-6XXX | T-MOBILE USA, INC. | 6529 | AURORA | IL |
| 2003-08-06 | 630-631-7XXX | T-MOBILE USA, INC. | 6529 | AURORA | IL |
| 2003-08-06 | 661-877-1XXX | T-MOBILE USA, INC. | 6529 | SNCA NHCS | CA |
| 2003-08-06 | 661-877-3XXX | T-MOBILE USA, INC. | 6529 | SNCA NHCS | CA |
| 2003-08-06 | 773-396-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2003-08-06 | 773-396-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2003-08-06 | 773-474-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2003-08-06 | 773-474-3XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2003-08-06 | 773-474-4XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2003-08-06 | 773-474-6XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2003-08-06 | 773-474-8XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2003-08-06 | 773-474-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN10 | IL |
| 2003-08-06 | 805-464-1XXX | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2003-08-06 | 805-815-5XXX | T-MOBILE USA, INC. | 6529 | OXNARD | CA |
| 2003-08-06 | 805-815-6XXX | T-MOBILE USA, INC. | 6529 | OXNARD | CA |
| 2003-08-06 | 805-815-7XXX | T-MOBILE USA, INC. | 6529 | OXNARD | CA |
| 2003-08-06 | 805-815-8XXX | T-MOBILE USA, INC. | 6529 | OXNARD | CA |
| 2003-08-06 | 808-232-4XXX | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| 2003-08-06 | 808-232-5XXX | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| 2003-08-06 | 808-232-6XXX | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| 2003-08-06 | 808-232-7XXX | T-MOBILE USA, INC. | 6529 | HONOLULU | HI |
| 2003-08-06 | 951-375-6XXX | T-MOBILE USA, INC. | 6529 | TEMECULA | CA |
| 2003-08-06 | 951-375-7XXX | T-MOBILE USA, INC. | 6529 | TEMECULA | CA |
| 2003-08-05 | 214-677-7XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2003-08-05 | 214-677-8XXX | T-MOBILE USA, INC. | 6529 | GRANDPRARI | TX |
| 2003-08-05 | 325-439-2XXX | T-MOBILE USA, INC. | 6529 | ABILENE | TX |
| 2003-08-05 | 325-439-4XXX | T-MOBILE USA, INC. | 6529 | ABILENE | TX |
| 2003-08-05 | 510-402-3XXX | T-MOBILE USA, INC. | 6529 | FRNK MAIN | CA |
| 2003-08-05 | 512-247-8XXX | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2003-08-05 | 520-223-0XXX | T-MOBILE USA, INC. | 6529 | NOGALES | AZ |
| 2003-08-05 | 520-313-8XXX | T-MOBILE USA, INC. | 6529 | NOGALES | AZ |
| 2003-08-05 | 636-299-8XXX | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2003-08-05 | 773-410-4XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2003-08-05 | 773-410-6XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2003-08-05 | 773-410-7XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2003-08-05 | 773-410-8XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2003-08-05 | 773-410-9XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2003-08-05 | 773-433-0XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN02 | IL |
| 2003-08-04 | 323-329-0XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2003-08-04 | 323-329-1XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 12 | CA |
| 2003-08-04 | 619-341-8XXX | T-MOBILE USA, INC. | 6529 | SNDG SNDG | CA |
| 2003-08-04 | 626-240-3XXX | T-MOBILE USA, INC. | 6529 | PSDN PSDN | CA |
| 2003-08-04 | 909-991-0XXX | T-MOBILE USA, INC. | 6529 | S BERNDINO | CA |
| 2003-08-04 | 909-991-1XXX | T-MOBILE USA, INC. | 6529 | S BERNDINO | CA |
| 2003-08-01 | 310-896-7XXX | T-MOBILE USA, INC. | 6529 | REDONDO | CA |
| 2003-08-01 | 310-944-7XXX | T-MOBILE USA, INC. | 6529 | REDONDO | 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.