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 |
|---|---|---|---|---|---|---|---|
| 2016-12-21 | 901-713-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2016-12-21 | 901-713-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2016-12-20 | 901-586-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | ARLINGTON | TN |
| 2016-12-12 | 901-708-1XXX | 1000–1999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | MEMPHIS | TN |
| 2016-12-05 | 901-633-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | MEMPHIS | TN |
| 2016-12-05 | 901-707-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2016-12-05 | 901-708-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2016-11-29 | 901-671-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2016-11-29 | 901-707-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2016-11-29 | 901-707-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2016-11-29 | 901-707-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2016-10-17 | 901-707-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2016-10-12 | 901-707-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | MEMPHIS | TN |
| 2016-10-12 | 901-707-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | MEMPHIS | TN |
| 2016-10-12 | 901-707-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | MEMPHIS | TN |
| 2016-10-12 | 901-707-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | MEMPHIS | TN |
| 2016-10-05 | 901-472-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | COLLIERVL | TN |
| 2016-09-29 | 901-671-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2016-09-29 | 901-671-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2016-09-29 | 901-671-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2016-09-29 | 901-671-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2016-09-27 | 901-671-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MEMPHIS | TN |
| 2016-09-13 | 901-472-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | COLLIERVL | TN |
| 2016-09-01 | 901-671-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2016-09-01 | 901-671-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | MEMPHIS | TN |
| 2016-08-15 | 901-930-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | MEMPHIS | TN |
| 2016-07-26 | 901-671-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2016-07-26 | 901-671-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2016-07-19 | 901-630-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2016-07-19 | 901-779-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2016-07-19 | 901-779-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2016-07-08 | 901-630-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MEMPHIS | TN |
| 2016-07-08 | 901-630-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MEMPHIS | TN |
| 2016-06-22 | 901-630-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | MEMPHIS | TN |
| 2016-06-20 | 901-667-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | WESTWHITEV | TN |
| 2016-06-17 | 901-586-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ARLINGTON | TN |
| 2016-06-17 | 901-617-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COVINGTON | TN |
| 2016-06-15 | 901-472-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2016-06-15 | 901-641-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SOMERVILLE | TN |
| 2016-06-13 | 901-623-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2016-06-13 | 901-623-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2016-06-08 | 901-623-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2016-05-25 | 901-623-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MEMPHIS | TN |
| 2016-05-25 | 901-623-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2016-05-25 | 901-623-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2016-05-25 | 901-623-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MEMPHIS | TN |
| 2016-05-24 | 901-641-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TN | 525E | SOMERVILLE | TN |
| 2016-05-24 | 901-641-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TN | 525E | SOMERVILLE | TN |
| 2016-05-24 | 901-641-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TN | 525E | SOMERVILLE | TN |
| 2016-05-24 | 901-808-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TN | 525E | MOSCOW | 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.