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
LEVEL 3 TELECOM OF INDIANA, LP - IN 64
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
2016-07-20 317-795-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2015-11-11 317-389-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2015-06-30 317-763-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 WESTFIELD IN
2015-06-30 317-763-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 WESTFIELD IN
2015-04-28 317-768-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 WHITESTOWN IN
2014-11-07 317-689-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2014-10-29 317-986-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2014-07-01 317-975-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2014-03-27 317-975-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2013-11-22 317-279-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 PLAINFIELD IN
2013-11-14 317-582-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2013-11-12 317-712-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 FISHERS IN
2010-07-02 317-447-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2009-11-05 317-803-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2009-10-27 317-803-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2009-10-27 317-803-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2009-01-12 317-688-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2008-06-10 317-452-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-06-10 317-452-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-30 317-493-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-0XXX 0000–0999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-04-18 317-957-9XXX 9000–9999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-03-05 317-493-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2008-03-05 317-493-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2007-12-11 317-428-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2007-08-08 317-348-9XXX 9000–9999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 FISHERS IN
2007-03-27 317-318-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 GREENFIELD IN
2007-03-19 317-429-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2007-03-19 317-429-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2007-02-13 317-344-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 ZIONSVILLE IN
2007-02-13 317-660-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2007-01-15 317-217-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2006-12-15 317-428-1XXX 1000–1999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2006-06-20 317-853-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2006-06-20 317-853-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2006-06-09 317-454-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2006-04-14 317-381-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2006-03-20 317-564-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2006-03-10 317-352-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 INDIANAPLS IN
2006-01-30 317-218-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2006-01-30 317-688-6XXX 6000–6999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL IN
2006-01-10 317-810-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF INDIANA, LP - IN 7060 CARMEL 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.