NumberResearchRecent thousands-block assignments
0 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, all time — NPA 551
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | 551-410-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RIDGEWOOD | NJ |
| 2026-08-18 | 551-428-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | JERSEYCITY | NJ |
| 2026-08-18 | 551-428-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | JERSEYCITY | NJ |
| 2026-06-15 | 551-410-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RIDGEWOOD | NJ |
| 2026-06-15 | 551-425-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RAMSEY | NJ |
| 2026-06-15 | 551-435-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2025-04-18 | 551-391-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | TEANECK | NJ |
| 2025-03-11 | 551-408-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | DUMONT | NJ |
| 2025-03-11 | 551-418-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | ORADELL | NJ |
| 2024-12-09 | 551-383-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | ORADELL | NJ |
| 2024-12-09 | 551-406-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLOSTER | NJ |
| 2024-09-26 | 551-378-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLIFFSIDE | NJ |
| 2024-09-26 | 551-378-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLIFFSIDE | NJ |
| 2024-09-26 | 551-380-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RUTHERFORD | NJ |
| 2024-09-26 | 551-380-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RUTHERFORD | NJ |
| 2024-09-26 | 551-396-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2024-09-26 | 551-396-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | BAYONNE | NJ |
| 2024-07-10 | 551-384-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | UNION CITY | NJ |
| 2024-07-10 | 551-384-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | UNION CITY | NJ |
| 2024-07-10 | 551-384-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | UNION CITY | NJ |
| 2023-04-21 | 551-600-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | WYCKOFF | NJ |
| 2023-04-20 | 551-359-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | JERSEYCITY | NJ |
| 2023-04-20 | 551-362-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | JERSEYCITY | NJ |
| 2023-02-06 | 551-365-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | KEARNY | NJ |
| 2023-01-20 | 551-365-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | KEARNY | NJ |
| 2023-01-20 | 551-365-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | KEARNY | NJ |
| 2023-01-20 | 551-369-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | TEANECK | NJ |
| 2023-01-20 | 551-369-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | TEANECK | NJ |
| 2023-01-20 | 551-788-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | PARK RIDGE | NJ |
| 2023-01-20 | 551-788-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | PARK RIDGE | NJ |
| 2022-10-20 | 551-354-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | HACKENSACK | NJ |
| 2022-10-20 | 551-354-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | HACKENSACK | NJ |
| 2022-10-20 | 551-361-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | HACKENSACK | NJ |
| 2022-10-20 | 551-361-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | HACKENSACK | NJ |
| 2022-10-20 | 551-837-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | HACKENSACK | NJ |
| 2022-10-06 | 551-349-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | JERSEYCITY | NJ |
| 2022-10-06 | 551-349-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | JERSEYCITY | NJ |
| 2022-09-26 | 551-360-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | LEONIA | NJ |
| 2022-09-26 | 551-688-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | LEONIA | NJ |
| 2022-09-26 | 551-688-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | LEONIA | NJ |
| 2022-09-26 | 551-688-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | LEONIA | NJ |
| 2022-09-26 | 551-688-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | LEONIA | NJ |
| 2022-09-26 | 551-688-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | LEONIA | NJ |
| 2022-09-26 | 551-688-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | LEONIA | NJ |
| 2022-08-22 | 551-688-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | LEONIA | NJ |
| 2022-08-18 | 551-288-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLOSTER | NJ |
| 2022-08-18 | 551-766-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | RUTHERFORD | NJ |
| 2022-08-18 | 551-966-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | FAIR LAWN | NJ |
| 2022-08-17 | 551-866-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLIFFSIDE | NJ |
| 2022-08-17 | 551-866-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | CLIFFSIDE | NJ |
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.