NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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, last 30 days — NPA 317
ONVOY, LLC - IN 8
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 1
HD CARRIER LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 1
BANDWIDTH.COM CLEC, LLC - IN 1
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
2012-01-10 317-540-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-540-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-540-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-540-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-540-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-540-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-540-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-540-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-540-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-10 317-551-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-04 317-227-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-04 317-236-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-04 317-236-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-04 317-475-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-04 317-479-6XXX 6000–6999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2012-01-04 317-544-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-04 317-684-9XXX 9000–9999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2012-01-04 317-722-7XXX 7000–7999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2012-01-04 317-921-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2012-01-04 317-968-0XXX 0000–0999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2011-12-14 317-218-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CARMEL IN
2011-12-09 317-378-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2011-12-09 317-378-3XXX 3000–3999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2011-12-09 317-378-4XXX 4000–4999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2011-12-09 317-378-5XXX 5000–5999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2011-12-09 317-378-6XXX 6000–6999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2011-12-09 317-599-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2011-12-09 317-599-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2011-12-09 317-599-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2011-12-09 317-599-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2011-12-09 317-599-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2011-12-09 317-999-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2011-12-09 317-999-1XXX 1000–1999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2011-12-09 317-999-2XXX 2000–2999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2011-12-09 317-999-3XXX 3000–3999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2011-12-09 317-999-4XXX 4000–4999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2011-12-07 317-576-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FISHERS IN
2011-12-07 317-857-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 WESTNEWTON IN
2011-12-01 317-739-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 FRANKLIN IN
2011-11-18 317-434-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CUMBERLAND IN
2011-11-08 317-401-8XXX 8000–8999Assigned PEERLESS NETWORK OF INDIANA, LLC - IN 279F SHELBYVL IN

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.