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 |
|---|---|---|---|---|---|
| 2003-08-12 | 312-479-1XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2003-08-12 | 312-479-2XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2003-08-12 | 312-479-3XXX | T-MOBILE USA, INC. | 6529 | CHICGOZN01 | IL |
| 2003-08-07 | 330-475-2XXX | T-MOBILE USA, INC. | 6529 | AKRON | OH |
| 2003-08-07 | 330-475-3XXX | T-MOBILE USA, INC. | 6529 | AKRON | OH |
| 2003-08-07 | 330-475-4XXX | T-MOBILE USA, INC. | 6529 | AKRON | OH |
| 2003-08-07 | 330-475-5XXX | T-MOBILE USA, INC. | 6529 | AKRON | OH |
| 2003-08-07 | 330-475-6XXX | T-MOBILE USA, INC. | 6529 | AKRON | OH |
| 2003-08-06 | 214-277-1XXX | T-MOBILE USA, INC. | 6529 | IRVING | TX |
| 2003-08-06 | 214-277-2XXX | T-MOBILE USA, INC. | 6529 | IRVING | TX |
| 2003-08-06 | 214-687-8XXX | T-MOBILE USA, INC. | 6529 | IRVING | TX |
| 2003-08-06 | 310-946-1XXX | T-MOBILE USA, INC. | 6529 | INGLEWOOD | CA |
| 2003-08-06 | 310-946-2XXX | T-MOBILE USA, INC. | 6529 | INGLEWOOD | CA |
| 2003-08-06 | 323-206-0XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 323-206-1XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 323-206-2XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 323-206-7XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 323-206-8XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 323-316-4XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 323-316-5XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 323-316-6XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 323-316-7XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 323-316-8XXX | T-MOBILE USA, INC. | 6529 | LSAN DA 03 | CA |
| 2003-08-06 | 415-335-0XXX | T-MOBILE USA, INC. | 6529 | SNFC JUNPR | CA |
| 2003-08-06 | 415-335-1XXX | T-MOBILE USA, INC. | 6529 | SNFC JUNPR | CA |
| 2003-08-06 | 415-335-2XXX | T-MOBILE USA, INC. | 6529 | SNFC JUNPR | CA |
| 2003-08-06 | 480-206-0XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 480-293-4XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 480-375-0XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 480-375-5XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 480-385-8XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 480-385-9XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 503-734-5XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2003-08-06 | 503-734-6XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2003-08-06 | 503-734-7XXX | T-MOBILE USA, INC. | 6529 | PORTLAND | OR |
| 2003-08-06 | 602-327-4XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-327-5XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-327-6XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-327-7XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-327-8XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-327-9XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-334-0XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-334-2XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-334-3XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-334-5XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-334-6XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-334-7XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-334-8XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-334-9XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2003-08-06 | 602-384-3XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
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.