NumberResearchRecent thousands-block assignments
25 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 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 |
|---|---|---|---|---|---|---|---|
| 2026-09-18 | 501-844-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | JONESMILLS | AR |
| 2026-09-17 | 501-574-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | BENTON | AR |
| 2026-09-17 | 501-591-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | BEEBE | AR |
| 2026-09-17 | 501-595-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | BRYANTCGVL | AR |
| 2026-09-16 | 501-356-1XXX | 1000–1999 | Assigned | CSC WIRELESS, LLC | 425J | JESSIEVL | AR |
| 2026-09-16 | 501-532-4XXX | 4000–4999 | Assigned | CSC WIRELESS, LLC | 425J | JESSIEVL | AR |
| 2026-09-14 | 501-549-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | PALARM | AR |
| 2026-09-10 | 501-473-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AR | 348F | SEARCY | AR |
| 2026-09-10 | 501-473-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | SEARCY | AR |
| 2026-09-10 | 501-578-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FERNDALE | AR |
| 2026-09-03 | 501-560-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | JACKSONVL | AR |
| 2026-09-03 | 501-560-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AR | 348F | JACKSONVL | AR |
| 2026-09-03 | 501-599-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AR | 348F | SYVNHLSHWD | AR |
| 2026-09-03 | 501-599-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AR | 348F | SYVNHLSHWD | AR |
| 2026-09-02 | 501-383-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | SEARCY | AR |
| 2026-09-02 | 501-560-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | JACKSONVL | AR |
| 2026-09-02 | 501-586-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | CONWAY | AR |
| 2026-09-02 | 501-597-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | HOTSPRINGS | AR |
| 2026-09-02 | 501-610-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | CABOT | AR |
| 2026-08-26 | 501-272-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2026-08-25 | 501-591-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | BEEBE | AR |
| 2026-08-24 | 501-514-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | CONWAY | AR |
| 2026-08-24 | 501-597-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | HOTSPRINGS | AR |
| 2026-08-24 | 501-597-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | HOTSPRINGS | AR |
| 2026-08-24 | 501-881-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | HOTSPRINGS | AR |
| 2026-08-18 | 501-284-8XXX | 8000–8999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | JUDSONIA | AR |
| 2026-08-18 | 501-299-4XXX | 4000–4999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | KENSETT | AR |
| 2026-08-18 | 501-488-3XXX | 3000–3999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | BRADFORD | AR |
| 2026-08-18 | 501-582-8XXX | 8000–8999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | BENTON | AR |
| 2026-08-17 | 501-582-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | BENTON | AR |
| 2026-08-17 | 501-582-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | BENTON | AR |
| 2026-08-17 | 501-582-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | BENTON | AR |
| 2026-08-13 | 501-277-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | GREENBRIER | AR |
| 2026-08-12 | 501-610-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | CABOT | AR |
| 2026-07-30 | 501-578-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | FERNDALE | AR |
| 2026-07-27 | 501-248-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2026-07-27 | 501-248-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2026-07-27 | 501-264-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2026-07-27 | 501-264-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2026-07-27 | 501-264-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2026-07-21 | 501-586-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | CONWAY | AR |
| 2026-07-21 | 501-586-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AR | 348F | CONWAY | AR |
| 2026-07-21 | 501-591-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AR | 348F | BEEBE | AR |
| 2026-07-14 | 501-595-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BRYANTCGVL | AR |
| 2026-07-09 | 501-586-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - AR | 196F | CONWAY | AR |
| 2026-07-08 | 501-277-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | GREENBRIER | AR |
| 2026-07-08 | 501-473-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AR | 348F | SEARCY | AR |
| 2026-07-08 | 501-473-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AR | 348F | SEARCY | AR |
| 2026-07-08 | 501-579-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AR | 348F | SPRINGLAKE | AR |
| 2026-07-06 | 501-815-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | JONESMILLS | AR |
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.