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 |
|---|---|---|---|---|---|---|---|
| 2007-12-19 | 501-326-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | BENTON | AR |
| 2007-12-19 | 501-574-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | BENTON | AR |
| 2007-12-19 | 501-613-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2007-12-14 | 501-246-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-12-14 | 501-251-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-11-23 | 501-548-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CONWAY | AR |
| 2007-11-02 | 501-762-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | HOTSPRINGS | AR |
| 2007-10-12 | 501-226-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JESSIEVL | AR |
| 2007-10-12 | 501-438-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LONOKE | AR |
| 2007-10-12 | 501-628-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | CABOT | AR |
| 2007-10-09 | 501-253-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLINTON | AR |
| 2007-10-09 | 501-304-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | MALVERN | AR |
| 2007-10-03 | 501-229-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MALVERN | AR |
| 2007-10-03 | 501-288-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BEEBE | AR |
| 2007-10-03 | 501-701-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HOTSPRINGS | AR |
| 2007-09-17 | 501-414-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | LITTLEROCK | AR |
| 2007-09-17 | 501-581-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENBRIER | AR |
| 2007-09-14 | 501-215-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MORRILTON | AR |
| 2007-09-14 | 501-909-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BENTON | AR |
| 2007-09-12 | 501-743-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | CABOT | AR |
| 2007-09-04 | 501-251-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | LITTLEROCK | AR |
| 2007-08-15 | 501-613-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2007-08-10 | 501-353-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-08-10 | 501-353-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-08-06 | 501-213-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | BRYANTCGVL | AR |
| 2007-07-31 | 501-887-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | HEBER SPG | AR |
| 2007-07-25 | 501-253-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CLINTON | AR |
| 2007-07-13 | 501-353-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-07-13 | 501-353-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-07-13 | 501-353-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-06-28 | 501-651-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - AR | 802C | HOTSPRINGS | AR |
| 2007-06-25 | 501-542-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | SYVNHLSHWD | AR |
| 2007-06-25 | 501-542-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | SYVNHLSHWD | AR |
| 2007-06-20 | 501-392-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | SYVNHLSHWD | AR |
| 2007-06-15 | 501-463-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AR | 5179 | HOTSPRINGS | AR |
| 2007-06-15 | 501-545-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | HOTSPRINGS | AR |
| 2007-06-07 | 501-737-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | SCOTT | AR |
| 2007-05-21 | 501-215-2XXX | 2000–2999 | Assigned | AT&T - LOCAL | 7421 | MORRILTON | AR |
| 2007-04-26 | 501-379-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | LITTLEROCK | AR |
| 2007-04-26 | 501-379-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | LITTLEROCK | AR |
| 2007-04-12 | 501-246-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | LITTLEROCK | AR |
| 2007-04-11 | 501-515-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-04-11 | 501-515-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-04-11 | 501-515-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-04-11 | 501-515-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | 6805 | LITTLEROCK | AR |
| 2007-04-11 | 501-613-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LITTLEROCK | AR |
| 2007-04-10 | 501-574-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | BENTON | AR |
| 2007-04-10 | 501-764-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | CONWAY | AR |
| 2007-04-05 | 501-288-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BEEBE | AR |
| 2007-03-22 | 501-943-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | 7277 | BRYANTCGVL | 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.