NumberResearchRecent thousands-block assignments
6 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 901
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 |
|---|---|---|---|---|---|---|---|
| 2020-11-09 | 901-582-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MEMPHIS | TN |
| 2020-11-02 | 901-571-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-11-02 | 901-571-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-11-02 | 901-571-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-11-02 | 901-571-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-11-02 | 901-571-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-11-02 | 901-571-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-11-02 | 901-571-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-11-02 | 901-571-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-11-02 | 901-571-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-11-02 | 901-571-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-10-29 | 901-370-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-10-29 | 901-560-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MEMPHIS | TN |
| 2020-10-22 | 901-560-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2020-10-22 | 901-560-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2020-10-22 | 901-560-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2020-10-22 | 901-560-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2020-10-22 | 901-560-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2020-10-22 | 901-560-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2020-10-22 | 901-560-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2020-10-15 | 901-499-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | ARLINGTON | TN |
| 2020-10-15 | 901-499-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | ARLINGTON | TN |
| 2020-10-15 | 901-499-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | ARLINGTON | TN |
| 2020-10-15 | 901-699-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COVINGTON | TN |
| 2020-10-15 | 901-699-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COVINGTON | TN |
| 2020-10-15 | 901-799-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2020-10-15 | 901-799-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2020-10-13 | 901-560-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MEMPHIS | TN |
| 2020-09-30 | 901-560-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MEMPHIS | TN |
| 2020-09-29 | 901-554-7XXX | 7000–7999 | Assigned | VONAGE AMERICA LLC | 197D | MEMPHIS | TN |
| 2020-09-11 | 901-554-6XXX | 6000–6999 | Assigned | NUSO, LLC | 478J | MEMPHIS | TN |
| 2020-09-06 | 901-554-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | MEMPHIS | TN |
| 2020-09-03 | 901-554-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | MEMPHIS | TN |
| 2020-09-03 | 901-554-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TN | 525E | MEMPHIS | TN |
| 2020-09-03 | 901-558-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2020-09-01 | 901-407-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | MILLINGTON | TN |
| 2020-08-31 | 901-554-0XXX | 0000–0999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-31 | 901-554-1XXX | 1000–1999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-31 | 901-554-2XXX | 2000–2999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-31 | 901-554-9XXX | 9000–9999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-25 | 901-519-1XXX | 1000–1999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-25 | 901-519-5XXX | 5000–5999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-25 | 901-538-0XXX | 0000–0999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-25 | 901-538-1XXX | 1000–1999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-25 | 901-549-0XXX | 0000–0999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-25 | 901-549-1XXX | 1000–1999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-25 | 901-549-9XXX | 9000–9999 | Assigned | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEMPHIS | TN |
| 2020-08-19 | 901-549-8XXX | 8000–8999 | Assigned | TWILIO INTERNATIONAL, INC. | 506J | MEMPHIS | TN |
| 2020-08-12 | 901-499-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ARLINGTON | TN |
| 2020-08-12 | 901-519-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | MEMPHIS | TN |
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.