NumberResearch Membership · Data 09/22/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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 703
YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 56
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2011-06-08 703-688-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2011-06-08 703-982-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2011-03-15 703-468-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E HAYMARKET VA
2011-03-15 703-468-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E HAYMARKET VA
2011-03-15 703-468-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E HAYMARKET VA
2011-03-15 703-596-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E NOKESVILLE VA
2011-03-15 703-596-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E NOKESVILLE VA
2011-03-15 703-743-0XXX 0000–0999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E HAYMARKET VA
2011-02-28 703-982-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2011-02-28 703-982-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2010-10-14 703-982-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2010-10-14 703-982-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2009-09-28 703-646-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2009-09-28 703-646-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2009-09-28 703-782-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ENGLESIDE VA
2009-09-28 703-782-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ENGLESIDE VA
2009-01-29 703-268-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E WSNGTNZN19 VA
2009-01-29 703-445-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E TRIANGLE VA
2009-01-29 703-537-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E WSNGTNZN19 VA
2009-01-29 703-539-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E WSNGTNZN19 VA
2009-01-09 703-436-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2009-01-09 703-672-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2009-01-07 703-249-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2009-01-07 703-372-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ENGLESIDE VA
2009-01-07 703-372-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ENGLESIDE VA
2009-01-07 703-745-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2009-01-07 703-745-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2009-01-07 703-745-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2009-01-07 703-957-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ARCOLA VA
2008-06-27 703-957-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ARCOLA VA
2008-05-15 703-337-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ENGLESIDE VA
2008-05-15 703-337-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ENGLESIDE VA
2008-05-15 703-337-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ENGLESIDE VA
2008-05-15 703-445-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E TRIANGLE VA
2008-05-15 703-445-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E TRIANGLE VA
2008-05-15 703-445-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E TRIANGLE VA
2008-05-15 703-495-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2008-05-15 703-495-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2008-05-15 703-829-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2008-05-15 703-829-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2008-05-15 703-829-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA
2008-04-24 703-334-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E MANASSAS VA
2008-04-24 703-334-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E MANASSAS VA
2008-03-19 703-334-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E MANASSAS VA
2008-03-19 703-337-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ENGLESIDE VA
2008-03-19 703-388-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E WSNGTNZN17 VA
2008-03-19 703-445-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E TRIANGLE VA
2008-03-19 703-495-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E LORTON VA
2008-03-19 703-722-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E ARCOLA VA
2007-05-23 703-825-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E BRADDOCK VA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.