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 531
ONVOY, LLC - NE 3
MIDSTATES DATA TRANSPORT, LLC - NE 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 2
INTRADO COMMUNICATIONS, LLC 1
BOOST SUBSCRIBERCO L.L.C. 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
2022-12-30 531-275-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 HOWELLS NE
2022-12-30 531-297-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 WAKEFIELD NE
2022-12-30 531-776-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 AINSWORTH NE
2022-12-29 531-310-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2022-12-29 531-310-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2022-12-19 531-246-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 SUPERIOR NE
2022-12-19 531-306-7XXX 7000–7999Assigned ONVOY, LLC - NE 549E MURRAY NE
2022-12-14 531-306-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 MURRAY NE
2022-12-13 531-810-8XXX 8000–8999Assigned ONVOY, LLC - NE 549E LINCOLN NE
2022-12-09 531-217-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 PLATTSMTH NE
2022-11-28 531-353-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E WAHOO NE
2022-11-22 531-400-0XXX 0000–0999Assigned COMMIO, LLC 939H COLUMBUS NE
2022-11-16 531-304-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PENDER NE
2022-11-16 531-305-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 HICKMAN NE
2022-11-15 531-227-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLARKSON NE
2022-11-15 531-235-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EMERSON NE
2022-11-15 531-293-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SCHUYLER NE
2022-11-15 531-310-5XXX 5000–5999Assigned ALLO COMMUNICATIONS LLC 907K LINCOLN NE
2022-11-09 531-295-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 LAUREL NE
2022-11-09 531-302-0XXX 0000–0999Assigned COMMIO, LLC 939H TECUMSEH NE
2022-11-09 531-302-1XXX 1000–1999Assigned COMMIO, LLC 939H TECUMSEH NE
2022-11-08 531-240-8XXX 8000–8999Assigned COMMIO, LLC 939H ASHLAND NE
2022-11-08 531-246-0XXX 0000–0999Assigned COMMIO, LLC 939H SUPERIOR NE
2022-10-31 531-286-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E OAKLAND NE
2022-10-26 531-264-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E FIRTH NE
2022-10-26 531-280-0XXX 0000–0999Assigned UNITED STATES CELLULAR - NE 6263 LINCOLN NE
2022-10-26 531-280-1XXX 1000–1999Assigned UNITED STATES CELLULAR - NE 6263 LINCOLN NE
2022-10-26 531-280-2XXX 2000–2999Assigned UNITED STATES CELLULAR - NE 6263 LINCOLN NE
2022-10-26 531-280-3XXX 3000–3999Assigned UNITED STATES CELLULAR - NE 6263 LINCOLN NE
2022-10-19 531-273-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E DE WITT NE
2022-10-13 531-303-3XXX 3000–3999Assigned ONVOY, LLC - NE 549E POLK NE
2022-10-12 531-264-1XXX 1000–1999Assigned COMMIO, LLC 939H FIRTH NE
2022-10-03 531-291-5XXX 5000–5999Assigned ALLO COMMUNICATIONS LLC 907K CRETE NE
2022-09-29 531-296-2XXX 2000–2999Assigned ONVOY, LLC - NE 549E CEDAR BLF NE
2022-09-26 531-353-1XXX 1000–1999Assigned COMMIO, LLC 939H WAHOO NE
2022-09-23 531-290-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PILGER NE
2022-09-23 531-296-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CEDAR BLF NE
2022-09-23 531-297-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAKEFIELD NE
2022-09-23 531-303-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 POLK NE
2022-09-23 531-312-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAMORA NE
2022-09-23 531-338-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DAVID CITY NE
2022-09-23 531-441-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MEAD NE
2022-09-16 531-294-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 NEBRASKACY NE
2022-09-08 531-287-0XXX 0000–0999Assigned UNITED STATES CELLULAR - NE 6263 AUBURN NE
2022-09-08 531-293-0XXX 0000–0999Assigned UNITED STATES CELLULAR - NE 6263 SCHUYLER NE
2022-09-01 531-278-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E LINCOLN NE
2022-09-01 531-278-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - NE 995E LINCOLN NE
2022-08-25 531-269-7XXX 7000–7999Assigned UNITED STATES CELLULAR - NE 6263 NORFOLK NE
2022-08-25 531-269-8XXX 8000–8999Assigned UNITED STATES CELLULAR - NE 6263 NORFOLK NE
2022-08-25 531-284-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 OMAHA NE

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.