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 |
|---|---|---|---|---|---|---|---|
| 2006-01-24 | 501-701-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOTSPRINGS | AR |
| 2006-01-23 | 501-864-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SYVNHLSHWD | AR |
| 2006-01-12 | 501-215-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MORRILTON | AR |
| 2006-01-12 | 501-303-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BENTON | AR |
| 2006-01-12 | 501-358-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2006-01-12 | 501-358-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2006-01-12 | 501-467-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MALVERN | AR |
| 2006-01-12 | 501-593-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SEARCY | AR |
| 2006-01-12 | 501-593-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SEARCY | AR |
| 2006-01-12 | 501-650-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2006-01-12 | 501-650-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2006-01-12 | 501-650-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2006-01-12 | 501-650-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2006-01-12 | 501-650-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2005-12-28 | 501-438-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LONOKE | AR |
| 2005-12-28 | 501-581-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENBRIER | AR |
| 2005-12-22 | 501-650-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2005-12-22 | 501-650-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2005-12-13 | 501-358-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2005-12-09 | 501-288-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BEEBE | AR |
| 2005-11-23 | 501-743-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CABOT | AR |
| 2005-11-07 | 501-213-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | BRYANTCGVL | AR |
| 2005-11-07 | 501-261-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | SPRINGLAKE | AR |
| 2005-11-07 | 501-367-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | PINNACLE | AR |
| 2005-11-07 | 501-448-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | FERNDALE | AR |
| 2005-11-07 | 501-819-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | SYVNHLSHWD | AR |
| 2005-11-07 | 501-983-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | JACKSONVL | AR |
| 2005-11-03 | 501-353-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | LITTLEROCK | AR |
| 2005-10-28 | 501-463-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | HOTSPRINGS | AR |
| 2005-10-19 | 501-613-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | LITTLEROCK | AR |
| 2005-10-17 | 501-545-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOTSPRINGS | AR |
| 2005-10-14 | 501-206-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HEBER SPG | AR |
| 2005-10-14 | 501-545-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOTSPRINGS | AR |
| 2005-09-30 | 501-762-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | HOTSPRINGS | AR |
| 2005-09-30 | 501-762-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | HOTSPRINGS | AR |
| 2005-09-22 | 501-303-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BENTON | AR |
| 2005-08-31 | 501-442-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2005-08-31 | 501-442-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2005-08-24 | 501-545-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | HOTSPRINGS | AR |
| 2005-08-22 | 501-438-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | LONOKE | AR |
| 2005-08-18 | 501-650-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2005-08-16 | 501-262-7XXX | 7000–7999 | Assigned | AT&T - LOCAL | 7421 | HOTSPRINGS | AR |
| 2005-08-04 | 501-467-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MALVERN | AR |
| 2005-08-04 | 501-470-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2005-08-04 | 501-470-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2005-08-04 | 501-470-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CONWAY | AR |
| 2005-07-06 | 501-554-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2005-07-06 | 501-554-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2005-07-06 | 501-554-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | AR |
| 2005-07-06 | 501-554-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LITTLEROCK | 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.