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 516
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-06-24 | 516-415-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN06 | NY |
| 2011-04-26 | 516-350-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2010-12-02 | 516-350-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2010-10-13 | 516-323-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN06 | NY |
| 2010-10-13 | 516-323-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN06 | NY |
| 2010-08-23 | 516-348-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN08 | NY |
| 2009-09-21 | 516-252-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2009-09-21 | 516-307-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2009-09-21 | 516-345-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN06 | NY |
| 2009-09-21 | 516-368-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2009-09-21 | 516-499-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2009-09-21 | 516-499-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2009-09-21 | 516-502-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2009-09-21 | 516-502-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2009-09-21 | 516-726-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN01 | NY |
| 2009-09-21 | 516-734-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN01 | NY |
| 2009-09-21 | 516-960-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN06 | NY |
| 2009-08-10 | 516-692-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | COLDSPGHBR | NY |
| 2008-08-27 | 516-422-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | COLDSPGHBR | NY |
| 2008-08-27 | 516-422-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | COLDSPGHBR | NY |
| 2008-08-27 | 516-515-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2008-08-27 | 516-515-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2008-08-27 | 516-554-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2008-08-27 | 516-554-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2008-08-27 | 516-855-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN06 | NY |
| 2008-08-14 | 516-462-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2008-08-14 | 516-462-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2008-08-14 | 516-462-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2008-08-14 | 516-499-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2008-08-14 | 516-499-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2008-08-14 | 516-499-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN02 | NY |
| 2008-05-16 | 516-515-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2008-05-16 | 516-515-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2008-05-16 | 516-858-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN01 | NY |
| 2008-04-24 | 516-422-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | COLDSPGHBR | NY |
| 2008-02-07 | 516-252-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN05 | NY |
| 2008-02-07 | 516-300-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN01 | NY |
| 2008-02-07 | 516-442-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN06 | NY |
| 2008-02-07 | 516-495-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | NASSAUZN08 | NY |
| 2008-02-07 | 516-847-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | FARMINGDL | NY |
| 2007-06-29 | 516-422-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - NY | 282E | COLDSPGHBR | 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.