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
2006-09-26 317-654-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2006-09-22 317-663-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CARMEL IN
2006-09-21 317-731-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J INDIANAPLS IN
2006-09-21 317-731-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J INDIANAPLS IN
2006-09-21 317-731-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J INDIANAPLS IN
2006-09-21 317-731-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J INDIANAPLS IN
2006-09-21 317-735-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J INDIANAPLS IN
2006-09-21 317-735-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J INDIANAPLS IN
2006-09-18 317-497-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 GREENWOOD IN
2006-09-15 317-893-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GREENWOOD IN
2006-09-12 317-376-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 CICERO IN
2006-09-12 317-829-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J INDIANAPLS IN
2006-09-12 317-829-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J INDIANAPLS IN
2006-09-06 317-209-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-09-06 317-209-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-09-06 317-209-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-09-06 317-987-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-09-06 317-987-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-09-06 317-987-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-09-06 317-987-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-09-06 317-987-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-08-01 317-682-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2006-08-01 317-682-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2006-08-01 317-682-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IN 4803 INDIANAPLS IN
2006-07-31 317-395-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHELBYVL IN
2006-07-31 317-654-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2006-07-31 317-654-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2006-07-31 317-654-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2006-07-24 317-288-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FISHERS IN
2006-07-24 317-288-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J FISHERS IN
2006-07-21 317-869-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2006-07-21 317-869-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2006-07-20 317-987-0XXX 0000–0999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2006-07-20 317-987-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 INDIANAPLS IN
2006-07-18 317-395-9XXX 9000–9999Assigned METROPCS, INC. 5562 SHELBYVL IN
2006-07-10 317-376-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 CICERO IN
2006-07-10 317-376-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 CICERO IN
2006-07-10 317-544-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-10 317-544-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-10 317-549-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-10 317-644-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-10 317-656-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-10 317-681-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-10 317-755-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-10 317-755-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-10 317-941-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-10 317-985-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANAPLS IN
2006-07-06 317-644-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J INDIANAPLS IN
2006-07-06 317-644-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J INDIANAPLS IN
2006-07-06 317-802-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J 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.