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
2016-06-21 317-922-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F NOBLESVL IN
2016-06-14 317-420-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F CICERO IN
2016-06-02 317-967-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 GREENFIELD IN
2016-05-26 317-746-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J INDIANAPLS IN
2016-05-13 317-744-3XXX 3000–3999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2016-05-13 317-744-4XXX 4000–4999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2016-05-13 317-794-8XXX 8000–8999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2016-05-09 317-676-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D MARIETTA IN
2016-05-09 317-676-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D MARIETTA IN
2016-04-28 317-795-5XXX 5000–5999Assigned METROPCS, INC. 5562 CARMEL IN
2016-04-21 317-458-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D BARGERSVL IN
2016-04-04 317-420-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 CICERO IN
2016-03-31 317-556-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-31 317-556-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-31 317-556-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-31 317-556-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-31 317-556-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-31 317-556-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-31 317-556-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-31 317-743-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J GREENWOOD IN
2016-03-31 317-794-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-31 317-794-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-31 317-794-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2016-03-29 317-794-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D INDIANAPLS IN
2016-03-29 317-794-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D INDIANAPLS IN
2016-03-29 317-794-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D INDIANAPLS IN
2016-03-24 317-827-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FISHERS IN
2016-03-21 317-794-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J INDIANAPLS IN
2016-03-21 317-978-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D CHARLOTSVL IN
2016-03-21 317-978-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D CHARLOTSVL IN
2016-03-18 317-343-1XXX 1000–1999Assigned IP HORIZON LLC 515J CARMEL IN
2016-03-17 317-699-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHELBYVL IN
2016-03-17 317-766-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2016-03-17 317-766-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2016-03-17 317-766-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2016-03-17 317-766-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2016-03-17 317-766-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2016-03-17 317-933-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D NINEVEH IN
2016-03-17 317-933-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D NINEVEH IN
2016-03-16 317-458-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D BARGERSVL IN
2016-03-16 317-458-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D BARGERSVL IN
2016-03-16 317-648-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D TRAFALGAR IN
2016-03-16 317-648-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D TRAFALGAR IN
2016-03-14 317-647-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D SHERIDAN IN
2016-03-14 317-747-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D FORTVILLE IN
2016-03-14 317-747-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D FORTVILLE IN
2016-03-14 317-751-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D WHITELAND IN
2016-03-14 317-751-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D WHITELAND IN
2016-03-14 317-934-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D CUMBERLAND IN
2016-03-14 317-934-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D CUMBERLAND 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.