NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 317
TELEPORT COMMUNICATIONS AMERICA, LLC - IN 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
2020-04-02 317-742-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 PLAINFIELD IN
2018-10-08 317-768-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 WHITESTOWN IN
2018-01-31 317-764-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 NOBLESVL IN
2018-01-25 317-648-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 TRAFALGAR IN
2017-06-30 317-740-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 CARMEL IN
2017-03-01 317-795-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 CARMEL IN
2017-01-05 317-747-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 FORTVILLE IN
2016-12-30 317-458-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 BARGERSVL IN
2016-12-14 317-420-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 CICERO IN
2016-10-07 317-343-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 CARMEL IN
2016-10-06 317-754-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 PLAINFIELD IN
2016-08-04 317-751-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 WHITELAND IN
2015-06-17 317-204-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 PLAINFIELD IN
2014-11-19 317-689-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 CARMEL IN
2014-01-14 317-975-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 CARMEL IN
2013-07-11 317-668-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 FRANKLIN IN
2012-11-14 317-914-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 INDIANAPLS IN
2009-12-22 317-593-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 ACTON IN
2009-11-25 317-204-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 PLAINFIELD IN
2008-04-28 317-563-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 DANVILLE IN
2007-10-15 317-836-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SHERIDAN IN
2007-10-05 317-855-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 OAKLANDON IN
2007-07-10 317-210-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 MOORESVL IN
2007-06-12 317-456-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 BROWNSBURG IN
2007-06-12 317-857-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 WESTNEWTON IN
2007-02-13 317-456-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 BROWNSBURG IN
2005-02-02 317-825-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SHELBYVL IN
2003-10-16 317-214-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 NOBLESVL IN
2002-09-27 317-561-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 PLAINFIELD IN
2002-03-28 317-399-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 WESTFIELD IN
2002-03-15 317-642-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IN 7314 SHELBYVL IN

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.