NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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, all time — NPA 901
New assignments by month
Sep 2026
Aug 2026
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Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-09-26 | 901-714-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2023-01-04 | 901-256-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2022-09-07 | 901-673-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2022-07-20 | 901-593-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SOMERVILLE | TN |
| 2022-07-20 | 901-657-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SOMERVILLE | TN |
| 2022-01-20 | 901-660-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAGRANGE | TN |
| 2022-01-19 | 901-621-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | WESTWHITEV | TN |
| 2022-01-19 | 901-627-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MOSCOW | TN |
| 2021-11-23 | 901-656-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2021-10-29 | 901-613-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ARLINGTON | TN |
| 2021-10-29 | 901-613-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ARLINGTON | TN |
| 2021-10-21 | 901-542-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2021-10-21 | 901-546-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2021-10-21 | 901-565-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2021-10-21 | 901-582-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2021-10-21 | 901-589-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2021-10-21 | 901-589-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2021-10-21 | 901-589-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MEMPHIS | TN |
| 2021-10-08 | 901-445-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COVINGTON | TN |
| 2021-10-08 | 901-445-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COVINGTON | TN |
| 2021-09-27 | 901-445-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COVINGTON | TN |
| 2021-09-27 | 901-445-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COVINGTON | TN |
| 2021-08-23 | 901-557-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ARLINGTON | TN |
| 2021-08-23 | 901-593-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SOMERVILLE | TN |
| 2021-08-23 | 901-593-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | SOMERVILLE | TN |
| 2021-08-23 | 901-613-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ARLINGTON | TN |
| 2021-08-19 | 901-625-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2021-08-19 | 901-625-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2021-06-30 | 901-625-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2021-06-30 | 901-625-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COLLIERVL | TN |
| 2021-04-16 | 901-313-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COVINGTON | TN |
| 2021-04-16 | 901-557-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ARLINGTON | TN |
| 2021-04-16 | 901-557-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ARLINGTON | TN |
| 2021-04-16 | 901-699-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | COVINGTON | TN |
| 2021-03-31 | 901-599-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAGRANGE | TN |
| 2021-03-31 | 901-599-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | LAGRANGE | TN |
| 2021-03-29 | 901-899-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MOSCOW | TN |
| 2021-03-29 | 901-899-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | MOSCOW | 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 | 901-699-6XXX | 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 |
| 2020-08-12 | 901-499-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TN | 124F | ARLINGTON | TN |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.