NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 781
YMAX COMMUNICATIONS CORP. - MA 31
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
2009-08-11 781-261-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E ROCKLAND MA
2009-08-11 781-368-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WINCHESTER MA
2009-08-11 781-451-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WAKEFIELD MA
2009-08-11 781-808-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E REVERE MA
2009-07-14 781-202-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E BURLINGTON MA
2009-03-13 781-472-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WALTHAM MA
2009-02-26 781-352-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E NORWOOD MA
2009-02-04 781-236-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - MA 316E COHASSET MA
2009-02-04 781-375-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E DEDHAM MA
2009-02-04 781-479-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LYNN MA
2009-02-04 781-626-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WEYMOUTH MA
2008-10-31 781-867-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. - MA 316E SHARON MA
2008-10-30 781-922-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E REVERE MA
2008-09-25 781-285-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - MA 316E DUXBURY MA
2008-09-25 781-452-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. - MA 316E DUXBURY MA
2008-09-25 781-452-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E DUXBURY MA
2008-08-29 781-202-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E BURLINGTON MA
2008-04-25 781-422-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E KINGSTON MA
2008-02-08 781-202-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E BURLINGTON MA
2008-02-08 781-261-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - MA 316E ROCKLAND MA
2008-02-08 781-269-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E NORWOOD MA
2008-02-08 781-314-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WALTHAM MA
2008-02-08 781-355-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - MA 316E DEDHAM MA
2008-02-08 781-368-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WINCHESTER MA
2008-02-08 781-430-0XXX 0000–0999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LEXINGTON MA
2008-02-08 781-451-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WAKEFIELD MA
2008-02-08 781-489-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WELLESLEY MA
2008-02-08 781-584-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LYNN MA
2008-02-08 781-626-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WEYMOUTH MA
2008-02-08 781-808-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - MA 316E REVERE MA
2007-08-10 781-422-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E KINGSTON MA

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.