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 516
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 |
|---|---|---|---|---|---|---|---|
| 2023-10-18 | 516-985-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | FARMINGDL | NY |
| 2023-06-21 | 516-814-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN08 | NY |
| 2023-03-28 | 516-964-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN06 | NY |
| 2022-10-12 | 516-475-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN08 | NY |
| 2020-08-18 | 516-454-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | FARMINGDL | NY |
| 2019-10-02 | 516-916-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN01 | NY |
| 2019-08-22 | 516-738-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2019-05-30 | 516-738-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2015-10-27 | 516-344-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN01 | NY |
| 2015-07-08 | 516-261-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN08 | NY |
| 2015-07-08 | 516-583-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN04 | NY |
| 2015-04-15 | 516-888-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN01 | NY |
| 2014-10-03 | 516-265-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2014-09-30 | 516-727-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN02 | NY |
| 2014-09-24 | 516-962-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | FARMINGDL | NY |
| 2014-06-23 | 516-243-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2014-04-24 | 516-336-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN08 | NY |
| 2014-04-15 | 516-252-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2014-01-21 | 516-400-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN03 | NY |
| 2013-08-07 | 516-246-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2013-07-03 | 516-321-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN01 | NY |
| 2012-11-28 | 516-962-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | FARMINGDL | NY |
| 2012-02-23 | 516-272-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2012-02-10 | 516-331-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN01 | NY |
| 2012-01-30 | 516-986-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | FARMINGDL | NY |
| 2012-01-18 | 516-730-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN07 | NY |
| 2011-11-10 | 516-346-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN08 | NY |
| 2011-09-08 | 516-864-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN07 | NY |
| 2011-07-27 | 516-535-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2011-05-25 | 516-366-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN09 | NY |
| 2011-02-11 | 516-350-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2010-11-19 | 516-362-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN06 | NY |
| 2010-11-19 | 516-362-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN06 | NY |
| 2010-11-09 | 516-323-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN06 | NY |
| 2010-10-08 | 516-570-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN01 | NY |
| 2010-04-15 | 516-858-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN01 | NY |
| 2010-01-22 | 516-506-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2009-10-01 | 516-589-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN02 | NY |
| 2008-11-14 | 516-308-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN09 | NY |
| 2008-11-06 | 516-204-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN03 | NY |
| 2008-07-08 | 516-284-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN03 | NY |
| 2008-07-08 | 516-543-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN06 | NY |
| 2008-07-08 | 516-882-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN09 | NY |
| 2008-03-03 | 516-543-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN06 | NY |
| 2008-03-03 | 516-986-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | FARMINGDL | NY |
| 2008-02-04 | 516-368-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN05 | NY |
| 2008-01-31 | 516-468-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN09 | NY |
| 2008-01-31 | 516-468-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN09 | NY |
| 2008-01-31 | 516-531-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | FARMINGDL | NY |
| 2008-01-31 | 516-686-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | NASSAUZN04 | NY |
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.