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
2010-11-22 317-200-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2010-11-19 317-200-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J INDIANAPLS IN
2010-11-18 317-863-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J FISHERS IN
2010-11-16 317-550-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2010-11-16 317-550-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2010-11-16 317-550-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F INDIANAPLS IN
2010-11-16 317-550-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2010-11-16 317-550-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-11-16 317-550-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-11-16 317-550-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-11-16 317-550-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-11-16 317-735-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-11-12 317-853-6XXX 6000–6999Assigned BHN IP ENABLED SERVICES, LLC 045L CARMEL IN
2010-11-03 317-354-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2010-11-03 317-488-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2010-11-03 317-726-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2010-11-03 317-869-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2010-11-02 317-268-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F PLAINFIELD IN
2010-11-02 317-537-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F FISHERS IN
2010-11-02 317-663-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F CARMEL IN
2010-10-27 317-660-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 CARMEL IN
2010-10-25 317-454-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2010-10-22 317-647-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C SHERIDAN IN
2010-10-21 317-263-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-10-21 317-397-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-10-21 317-874-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-10-21 317-931-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-10-21 317-941-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-10-21 317-941-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-10-19 317-397-0XXX 0000–0999Assigned ONVOY, LLC - IN 097D INDIANAPLS IN
2010-10-08 317-941-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2010-10-08 317-941-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 INDIANAPLS IN
2010-10-07 317-480-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C FAIRLAND IN
2010-09-28 317-597-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F OAKLANDON IN
2010-09-24 317-220-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-09-24 317-220-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C INDIANAPLS IN
2010-09-24 317-220-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2010-09-24 317-688-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C CARMEL IN
2010-09-21 317-300-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F GREENWOOD IN
2010-09-21 317-325-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F GREENFIELD IN
2010-09-21 317-399-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F WESTFIELD IN
2010-09-21 317-455-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F WESTNEWTON IN
2010-09-21 317-550-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F INDIANAPLS IN
2010-09-21 317-550-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F INDIANAPLS IN
2010-09-21 317-606-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F CICERO IN
2010-09-21 317-732-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F ZIONSVILLE IN
2010-09-21 317-758-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SHERIDAN IN
2010-09-21 317-825-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IN 105F SHELBYVL IN
2010-09-15 317-527-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ACTON IN
2010-09-10 317-703-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NOBLESVL 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.