NumberResearchRecent thousands-block assignments
25 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, last 30 days — NPA 501
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 |
|---|---|---|---|---|---|---|---|
| 2025-08-06 | 501-512-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BRYANTCGVL | AR |
| 2025-07-31 | 501-527-4XXX | 4000–4999 | Assigned | NUSO, LLC | 732J | LITTLEROCK | AR |
| 2025-07-23 | 501-524-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | VILONIA | AR |
| 2025-07-22 | 501-524-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | VILONIA | AR |
| 2025-07-15 | 501-491-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | BEEBE | AR |
| 2025-07-14 | 501-383-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | SEARCY | AR |
| 2025-07-14 | 501-427-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | MAUMELLE | AR |
| 2025-07-14 | 501-601-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | MALVERN | AR |
| 2025-06-27 | 501-402-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENBRIER | AR |
| 2025-06-20 | 501-203-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SEARCY | AR |
| 2025-06-20 | 501-267-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MALVERN | AR |
| 2025-06-20 | 501-491-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BEEBE | AR |
| 2025-06-20 | 501-564-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SYVNHLSHWD | AR |
| 2025-06-20 | 501-573-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CABOT | AR |
| 2025-06-20 | 501-578-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FERNDALE | AR |
| 2025-06-05 | 501-913-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LITTLEROCK | AR |
| 2025-05-30 | 501-770-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | WRIGHTSVL | AR |
| 2025-05-23 | 501-452-4XXX | 4000–4999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | MORRILTON | AR |
| 2025-05-23 | 501-491-8XXX | 8000–8999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | BEEBE | AR |
| 2025-05-20 | 501-491-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | BEEBE | AR |
| 2025-05-20 | 501-942-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SCOTT | AR |
| 2025-04-21 | 501-284-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JUDSONIA | AR |
| 2025-04-21 | 501-699-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SCOTLAND | AR |
| 2025-04-21 | 501-755-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | QUITMAN | AR |
| 2025-04-21 | 501-889-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PERRYVILLE | AR |
| 2025-04-17 | 501-330-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WYE | AR |
| 2025-04-17 | 501-524-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | VILONIA | AR |
| 2025-04-17 | 501-540-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MCRAE | AR |
| 2025-04-17 | 501-757-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLINTON | AR |
| 2025-04-16 | 501-383-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AR | 348F | SEARCY | AR |
| 2025-04-16 | 501-579-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGLAKE | AR |
| 2025-04-15 | 501-576-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AR | 348F | CONWAY | AR |
| 2025-04-15 | 501-642-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2025-04-14 | 501-338-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BISMARCK | AR |
| 2025-04-14 | 501-535-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BALD KNOB | AR |
| 2025-04-14 | 501-544-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SHIRLEY | AR |
| 2025-04-14 | 501-866-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CASA | AR |
| 2025-04-08 | 501-387-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AR | 348F | BEEBE | AR |
| 2025-04-08 | 501-573-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AR | 348F | CABOT | AR |
| 2025-04-08 | 501-573-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AR | 348F | CABOT | AR |
| 2025-03-31 | 501-560-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JACKSONVL | AR |
| 2025-03-26 | 501-314-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | GREENBRIER | AR |
| 2025-03-26 | 501-518-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | DAMASCUS | AR |
| 2025-03-26 | 501-524-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | VILONIA | AR |
| 2025-03-13 | 501-460-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AR | 348F | GREENBRIER | AR |
| 2025-03-13 | 501-484-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AR | 348F | SPRINGLAKE | AR |
| 2025-03-13 | 501-576-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AR | 348F | CONWAY | AR |
| 2025-03-13 | 501-576-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | CONWAY | AR |
| 2025-03-13 | 501-578-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | FERNDALE | AR |
| 2025-03-12 | 501-338-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | BISMARCK | AR |
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.