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
2014-09-30 317-675-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2014-09-30 317-732-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D ZIONSVILLE IN
2014-09-30 317-793-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2014-09-30 317-793-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2014-09-30 317-793-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2014-09-30 317-793-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2014-09-30 317-793-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2014-09-30 317-793-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2014-09-29 317-231-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2014-09-29 317-434-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D CUMBERLAND IN
2014-09-29 317-793-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2014-09-26 317-960-0XXX 0000–0999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2014-09-26 317-960-2XXX 2000–2999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2014-09-26 317-960-6XXX 6000–6999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2014-09-26 317-960-7XXX 7000–7999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2014-09-26 317-960-8XXX 8000–8999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2014-09-26 317-960-9XXX 9000–9999Assigned METROPCS, INC. 5562 INDIANAPLS IN
2014-09-25 317-830-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D WESTNEWTON IN
2014-09-25 317-830-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D WESTNEWTON IN
2014-09-25 317-929-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C INDIANAPLS IN
2014-09-24 317-401-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D SHELBYVL IN
2014-09-24 317-561-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D PLAINFIELD IN
2014-09-24 317-561-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D PLAINFIELD IN
2014-09-24 317-597-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D OAKLANDON IN
2014-09-24 317-597-6XXX 6000–6999Assigned ONVOY, LLC - IN 097D OAKLANDON IN
2014-09-23 317-520-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D BROWNSBURG IN
2014-09-23 317-520-8XXX 8000–8999Assigned ONVOY, LLC - IN 097D BROWNSBURG IN
2014-09-23 317-588-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D FISHERS IN
2014-09-23 317-588-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D FISHERS IN
2014-09-23 317-720-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D FAIRLAND IN
2014-09-23 317-720-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D FAIRLAND IN
2014-09-23 317-886-1XXX 1000–1999Assigned ONVOY, LLC - IN 097D GREENWOOD IN
2014-09-22 317-434-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J CUMBERLAND IN
2014-09-19 317-983-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F INDIANAPLS IN
2014-09-19 317-983-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F INDIANAPLS IN
2014-09-19 317-983-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F INDIANAPLS IN
2014-09-19 317-983-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F INDIANAPLS IN
2014-09-19 317-983-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F INDIANAPLS IN
2014-09-19 317-983-5XXX 5000–5999Assigned ONVOY, LLC - IN 097D INDIANAPLS IN
2014-09-17 317-593-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D ACTON IN
2014-09-17 317-593-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D ACTON IN
2014-09-17 317-834-7XXX 7000–7999Assigned ONVOY, LLC - IN 097D MOORESVL IN
2014-09-16 317-793-2XXX 2000–2999Assigned ONVOY, LLC - IN 097D INDIANAPLS IN
2014-09-16 317-793-3XXX 3000–3999Assigned ONVOY, LLC - IN 097D INDIANAPLS IN
2014-09-15 317-316-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F NOBLESVL IN
2014-09-15 317-675-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 INDIANAPLS IN
2014-09-15 317-675-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 INDIANAPLS IN
2014-09-15 317-675-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 INDIANAPLS IN
2014-09-15 317-675-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 INDIANAPLS IN
2014-09-15 317-675-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 7440 INDIANAPLS 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.