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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May 2026
Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-10-02 | 901-704-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2023-10-02 | 901-704-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2023-10-02 | 901-704-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2023-10-02 | 901-704-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2023-10-02 | 901-704-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2023-03-01 | 901-695-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2023-03-01 | 901-695-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2023-03-01 | 901-695-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2023-03-01 | 901-695-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2023-03-01 | 901-695-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2022-08-03 | 901-673-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | COLLIERVL | TN |
| 2022-08-03 | 901-673-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | COLLIERVL | TN |
| 2021-09-21 | 901-407-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | MILLINGTON | TN |
| 2021-08-03 | 901-243-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | MUNFORD | TN |
| 2020-07-27 | 901-506-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2016-12-05 | 901-707-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2016-10-17 | 901-707-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2016-06-08 | 901-623-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2016-05-05 | 901-666-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-12-30 | 901-666-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-11-25 | 901-480-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-11-25 | 901-480-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-11-25 | 901-779-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-11-25 | 901-779-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-11-25 | 901-779-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-11-25 | 901-779-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-11-25 | 901-779-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-11-25 | 901-779-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-10-29 | 901-616-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | ARLINGTON | TN |
| 2015-10-28 | 901-585-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-09-03 | 901-424-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | SOMERVILLE | TN |
| 2015-07-16 | 901-610-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | COLLIERVL | TN |
| 2015-07-07 | 901-453-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2015-03-13 | 901-617-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | COVINGTON | TN |
| 2014-09-18 | 901-221-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | COLLIERVL | TN |
| 2014-05-15 | 901-425-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2014-05-15 | 901-425-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2014-05-15 | 901-512-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2014-05-09 | 901-512-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2014-04-15 | 901-512-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2014-03-18 | 901-425-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2014-03-18 | 901-425-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2014-02-04 | 901-421-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2014-02-04 | 901-421-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2013-11-22 | 901-509-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2013-10-08 | 901-208-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2013-08-27 | 901-316-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | COLLIERVL | TN |
| 2013-07-24 | 901-410-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2013-05-24 | 901-379-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | TN |
| 2013-05-24 | 901-454-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | MEMPHIS | 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.