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 978
YMAX COMMUNICATIONS CORP. - MA 43
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
2011-03-24 978-967-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LOWELL MA
2010-02-26 978-788-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LOWELL MA
2009-11-20 978-228-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E HAVERHILL MA
2009-08-11 978-268-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E ACTON MA
2009-08-11 978-293-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E HUDSON MA
2009-08-11 978-325-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E GLOUCESTER MA
2009-08-11 978-548-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - MA 316E PEABODY MA
2009-08-11 978-724-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - MA 316E PETERSHAM MA
2009-08-11 978-778-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E BEVERLY MA
2009-08-11 978-792-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E AMESBURY MA
2009-07-14 978-746-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LOWELL MA
2009-07-14 978-747-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LAWRENCE MA
2009-03-13 978-732-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E GROTON MA
2009-02-26 978-219-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - MA 316E SALEM MA
2009-02-04 978-228-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E HAVERHILL MA
2009-02-04 978-298-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E MAYNARD MA
2009-02-04 978-330-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E BILLERICA MA
2009-02-04 978-402-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E CONCORD MA
2009-02-04 978-822-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - MA 316E SHIRLEY MA
2008-10-30 978-332-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LAWRENCE MA
2008-08-29 978-677-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LOWELL MA
2008-04-25 978-202-5XXX 5000–5999Assigned YMAX COMMUNICATIONS CORP. - MA 316E CONCORD MA
2008-04-25 978-747-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LAWRENCE MA
2008-02-08 978-218-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E SUDBURY MA
2008-02-08 978-236-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E BEVERLY MA
2008-02-08 978-264-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E ACTON MA
2008-02-08 978-267-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - MA 316E WILMINGTON MA
2008-02-08 978-293-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E HUDSON MA
2008-02-08 978-306-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - MA 316E SALEM MA
2008-02-08 978-322-0XXX 0000–0999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LOWELL MA
2008-02-08 978-325-3XXX 3000–3999Assigned YMAX COMMUNICATIONS CORP. - MA 316E GLOUCESTER MA
2008-02-08 978-330-2XXX 2000–2999Assigned YMAX COMMUNICATIONS CORP. - MA 316E BILLERICA MA
2008-02-08 978-344-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E MAYNARD MA
2008-02-08 978-406-6XXX 6000–6999Assigned YMAX COMMUNICATIONS CORP. - MA 316E DANVERS MA
2008-02-08 978-431-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LITTLETON MA
2008-02-08 978-449-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E GROTON MA
2008-02-08 978-548-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - MA 316E PEABODY MA
2008-02-08 978-702-9XXX 9000–9999Assigned YMAX COMMUNICATIONS CORP. - MA 316E HAVERHILL MA
2008-02-08 978-724-4XXX 4000–4999Assigned YMAX COMMUNICATIONS CORP. - MA 316E PETERSHAM MA
2008-02-08 978-822-8XXX 8000–8999Assigned YMAX COMMUNICATIONS CORP. - MA 316E SHIRLEY MA
2008-02-08 978-834-1XXX 1000–1999Assigned YMAX COMMUNICATIONS CORP. - MA 316E AMESBURY MA
2007-07-13 978-747-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E LAWRENCE MA
2007-07-12 978-202-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - MA 316E CONCORD 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.