NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 973
TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 29
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
2019-09-18 973-656-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MORRISTOWN NJ
2019-04-25 973-293-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MONTAGUE NJ
2019-03-27 973-917-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 BOONTON NJ
2017-07-17 973-554-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 ROCKAWAY NJ
2016-07-28 973-526-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 WHIPPANY NJ
2013-09-03 973-681-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 NEWARK NJ
2013-07-31 973-512-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 LAKEMOHAWK NJ
2013-04-08 973-437-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MADISON NJ
2011-05-23 973-756-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 NEWTON NJ
2010-08-04 973-826-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 LITTLE FLS NJ
2007-07-12 973-602-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 WHIPPANY NJ
2007-07-12 973-602-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 WHIPPANY NJ
2007-07-12 973-602-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 WHIPPANY NJ
2007-02-26 973-405-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 PASSAIC NJ
2007-01-23 973-506-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 W MILFORD NJ
2006-07-31 973-409-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 NEWFOUNDLD NJ
2006-06-23 973-407-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MORRISTOWN NJ
2006-06-23 973-407-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MORRISTOWN NJ
2006-03-24 973-407-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MORRISTOWN NJ
2006-03-24 973-407-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MORRISTOWN NJ
2006-03-24 973-407-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MORRISTOWN NJ
2006-03-24 973-407-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MORRISTOWN NJ
2006-03-24 973-407-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MORRISTOWN NJ
2005-12-05 973-419-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 ORANGE NJ
2003-01-22 973-446-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 NETCONG NJ
2002-12-26 973-440-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 NETCONG NJ
2002-03-01 973-433-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 VERONA NJ
2002-03-01 973-598-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 SUCCASUNNA NJ
2002-01-23 973-924-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 MILLBURN NJ

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.