NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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, all time — NPA 435
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-10-22 | 435-334-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | FILLMORE | UT |
| 2020-10-22 | 435-419-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | MONTICELLO | UT |
| 2020-10-22 | 435-485-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | BLANDING | UT |
| 2020-10-22 | 435-500-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | DELTA | UT |
| 2020-10-13 | 435-856-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | NEPHI | UT |
| 2020-08-26 | 435-549-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | VERNAL | UT |
| 2020-08-04 | 435-421-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | BEAVER | UT |
| 2020-04-08 | 435-355-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | MOAB | UT |
| 2019-11-27 | 435-999-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | LOGAN | UT |
| 2019-10-08 | 435-246-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | BRIGHAM CY | UT |
| 2015-11-03 | 435-291-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | TREMONTON | UT |
| 2014-09-15 | 435-703-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | ST GEORGE | UT |
| 2014-06-16 | 435-572-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | CEDAR CITY | UT |
| 2010-06-01 | 435-243-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - UT | 7530 | TOOELE | UT |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.