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
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 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
2023-04-01 978-442-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LOWELL MA
2023-04-01 978-442-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LOWELL MA
2023-04-01 978-442-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LOWELL MA
2017-05-01 978-560-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J DANVERS MA
2017-03-23 978-949-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MANCHESTER MA
2017-03-15 978-288-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BEVERLY MA
2014-06-11 978-783-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ANDOVER MA
2014-01-27 978-495-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BILLERICA MA
2012-01-06 978-484-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ROWLEY MA
2011-05-10 978-788-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LOWELL MA
2011-05-10 978-856-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LOWELL MA
2010-03-18 978-905-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LOWELL MA
2009-02-17 978-743-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PEPPERELL MA
2008-08-01 978-358-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NEWBURYPT MA
2008-07-18 978-526-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MANCHESTER MA
2008-04-09 978-515-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J GLOUCESTER MA
2008-02-07 978-674-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LOWELL MA
2007-10-17 978-883-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ASHBURNHAM MA
2007-06-04 978-357-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J NO READING MA
2006-12-06 978-344-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MAYNARD MA
2006-09-25 978-728-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LEOMINSTER MA
2006-08-25 978-669-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J GARDNER MA
2006-08-18 978-471-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IPSWICH MA
2006-08-08 978-310-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HUDSON MA
2006-07-14 978-431-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LITTLETON MA
2006-07-07 978-522-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BEVERLY MA
2006-06-29 978-295-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SUDBURY MA
2006-06-15 978-219-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SALEM MA
2006-06-01 978-208-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LAWRENCE MA
2006-06-01 978-912-9XXX 9000–9999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HAVERHILL MA
2006-05-16 978-605-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J DANVERS MA
2006-04-27 978-391-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J AYER MA
2006-04-27 978-516-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J FITCHBURG MA
2006-04-27 978-653-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HAMILTON MA
2006-03-16 978-785-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LUNENBURG MA
2006-03-03 978-598-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CLINTON MA
2005-03-08 978-229-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WILMINGTON MA
2005-03-08 978-364-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J LOWELL MA
2005-03-08 978-548-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J PEABODY MA
2005-03-03 978-289-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ANDOVER MA
2005-03-03 978-341-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CONCORD MA
2005-03-03 978-393-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ACTON MA
2005-03-03 978-495-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BILLERICA 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.