NumberResearchRecent thousands-block assignments
13 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 423
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 | 423-236-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | APISON | TN |
| 2026-09-16 | 423-978-7XXX | 7000–7999 | Assigned | INTRADO COMMUNICATIONS, LLC | 845C | CHATTNOOGA | TN |
| 2026-09-03 | 423-925-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAFOLLETTE | TN |
| 2026-09-03 | 423-995-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | JOHNSON CY | TN |
| 2026-09-02 | 423-699-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLEVELAND | TN |
| 2026-09-02 | 423-699-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | CLEVELAND | TN |
| 2026-09-02 | 423-820-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | GREENEVL | TN |
| 2026-09-02 | 423-918-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | ONEIDA | TN |
| 2026-09-02 | 423-927-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MORRISTOWN | TN |
| 2026-09-02 | 423-978-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | CHATTNOOGA | TN |
| 2026-08-25 | 423-455-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | JELLICO | TN |
| 2026-08-25 | 423-659-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | COPPERBSIN | TN |
| 2026-08-24 | 423-960-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF TENNESSEE, LLC - TN | 276F | CHATTNOOGA | TN |
| 2026-08-20 | 423-289-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MORRISTOWN | TN |
| 2026-08-20 | 423-375-7XXX | 7000–7999 | Assigned | OPENTACT INC. | 824J | BENTON | TN |
| 2026-08-20 | 423-382-7XXX | 7000–7999 | Assigned | OPENTACT INC. | 824J | SNEEDVILLE | TN |
| 2026-08-20 | 423-550-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MIDWAY | TN |
| 2026-08-20 | 423-695-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | BRISTOL | TN |
| 2026-08-18 | 423-379-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | NEWPORT | TN |
| 2026-08-18 | 423-591-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CHATTNOOGA | TN |
| 2026-08-18 | 423-591-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CHATTNOOGA | TN |
| 2026-08-18 | 423-812-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | GREENEVL | TN |
| 2026-08-18 | 423-969-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CLEVELAND | TN |
| 2026-08-18 | 423-969-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CLEVELAND | TN |
| 2026-08-18 | 423-981-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | JOHNSON CY | TN |
| 2026-08-18 | 423-997-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ELIZABTHTN | TN |
| 2026-07-09 | 423-299-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BENTON | TN |
| 2026-07-09 | 423-487-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | NEWPORT | TN |
| 2026-07-09 | 423-925-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAFOLLETTE | TN |
| 2026-07-09 | 423-927-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MORRISTOWN | TN |
| 2026-07-09 | 423-993-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CHATTNOOGA | TN |
| 2026-07-09 | 423-993-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | CHATTNOOGA | TN |
| 2026-07-07 | 423-565-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | DECATUR | TN |
| 2026-07-02 | 423-960-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | CHATTNOOGA | TN |
| 2026-06-18 | 423-685-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-685-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-685-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-685-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-685-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-685-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-685-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-685-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-685-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-685-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-695-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-695-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-695-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-695-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-695-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | TN |
| 2026-06-18 | 423-695-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRISTOL | 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.