NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 646
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-05-21 | 646-355-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-355-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-374-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-374-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-374-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-374-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-434-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-434-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-571-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-783-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-783-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-783-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-783-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-21 | 646-783-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-20 | 646-374-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-12 | 646-350-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-12 | 646-833-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY |
| 2008-05-12 | 646-845-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-07 | 646-353-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | NWYRCYZN01 | NY |
| 2008-05-01 | 646-402-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-01 | 646-571-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-01 | 646-845-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-05-01 | 646-845-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NWYRCYZN01 | NY |
| 2008-04-30 | 646-350-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-30 | 646-355-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-30 | 646-374-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-30 | 646-434-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-30 | 646-571-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-30 | 646-833-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-0XXX | 0000–0999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-2XXX | 2000–2999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-3XXX | 3000–3999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-4XXX | 4000–4999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-5XXX | 5000–5999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-6XXX | 6000–6999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-7XXX | 7000–7999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-8XXX | 8000–8999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-29 | 646-945-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2008-04-25 | 646-845-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY |
| 2008-04-25 | 646-845-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | NWYRCYZN01 | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.