NumberResearchRecent thousands-block assignments
43 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 — NPA 435
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-07-11 | 435-699-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | PARK CITY | UT |
| 2022-07-07 | 435-288-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - UT | 117F | ST GEORGE | UT |
| 2022-07-07 | 435-288-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - UT | 117F | ST GEORGE | UT |
| 2022-07-07 | 435-288-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - UT | 117F | ST GEORGE | UT |
| 2022-07-07 | 435-288-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - UT | 117F | ST GEORGE | UT |
| 2022-07-07 | 435-288-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - UT | 117F | ST GEORGE | UT |
| 2022-07-05 | 435-321-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | KAMAS | UT |
| 2022-07-05 | 435-746-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | KAMAS | UT |
| 2022-07-01 | 435-254-5XXX | 5000–5999 | Assigned | ONVOY, LLC - UT | 871E | PORTAGE | UT |
| 2022-06-29 | 435-238-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | CEDAR CITY | UT |
| 2022-06-29 | 435-288-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ST GEORGE | UT |
| 2022-06-29 | 435-295-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | BRIGHAM CY | UT |
| 2022-06-29 | 435-317-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | LOGAN | UT |
| 2022-06-29 | 435-737-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | TOOELE | UT |
| 2022-06-27 | 435-352-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - UT | 117F | HEBER CITY | UT |
| 2022-06-21 | 435-256-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | ST GEORGE | UT |
| 2022-06-21 | 435-301-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | ST GEORGE | UT |
| 2022-06-21 | 435-400-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | COALVILLE | UT |
| 2022-06-17 | 435-278-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | ENTERPRISE | UT |
| 2022-06-17 | 435-348-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | FILLMORE | UT |
| 2022-06-17 | 435-352-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | HEBER CITY | UT |
| 2022-06-06 | 435-274-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | TOOELE | UT |
| 2022-06-06 | 435-303-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | BEARRIV CY | UT |
| 2022-05-25 | 435-271-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF UTAH, LLC - UT | 526H | SALINA | UT |
| 2022-05-20 | 435-217-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RANDOLPH | UT |
| 2022-05-20 | 435-301-7XXX | 7000–7999 | Assigned | FIRSTDIGITAL COMMUNICATIONS, LLC | 716D | ST GEORGE | UT |
| 2022-05-20 | 435-309-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GLNCNYONCY | UT |
| 2022-05-11 | 435-274-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | TOOELE | UT |
| 2022-04-22 | 435-856-4XXX | 4000–4999 | Assigned | CENTRAL TELCOM SVCS DBA CENTRACOM INTERACTIVE - NV | 791D | NEPHI | UT |
| 2022-04-22 | 435-856-5XXX | 5000–5999 | Assigned | CENTRAL TELCOM SVCS DBA CENTRACOM INTERACTIVE - NV | 791D | NEPHI | UT |
| 2022-04-21 | 435-301-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | ST GEORGE | UT |
| 2022-04-21 | 435-301-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | ST GEORGE | UT |
| 2022-04-21 | 435-301-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | ST GEORGE | UT |
| 2022-04-21 | 435-301-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | ST GEORGE | UT |
| 2022-04-18 | 435-400-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | COALVILLE | UT |
| 2022-04-14 | 435-289-5XXX | 5000–5999 | Assigned | FIRSTDIGITAL COMMUNICATIONS, LLC | 716D | RICHFIELD | UT |
| 2022-04-14 | 435-375-7XXX | 7000–7999 | Assigned | FIRSTDIGITAL COMMUNICATIONS, LLC | 716D | ST GEORGE | UT |
| 2022-04-14 | 435-701-9XXX | 9000–9999 | Assigned | FIRSTDIGITAL COMMUNICATIONS, LLC | 716D | CEDAR CITY | UT |
| 2022-04-08 | 435-732-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | TREMONTON | UT |
| 2022-04-04 | 435-270-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | BLANDING | UT |
| 2022-04-04 | 435-348-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | FILLMORE | UT |
| 2022-04-01 | 435-418-6XXX | 6000–6999 | Assigned | FIRSTDIGITAL COMMUNICATIONS, LLC | 716D | BEAVER | UT |
| 2022-03-21 | 435-630-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | PRICE | UT |
| 2022-03-17 | 435-547-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | BRIAN HEAD | UT |
| 2022-03-17 | 435-600-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | PAROWAN | UT |
| 2022-03-16 | 435-250-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NEPHI | UT |
| 2022-03-16 | 435-261-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BEAVER | UT |
| 2022-03-16 | 435-271-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SALINA | UT |
| 2022-03-16 | 435-301-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ST GEORGE | UT |
| 2022-03-16 | 435-317-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LOGAN | UT |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.