NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 920
ONVOY, LLC - WI 4
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
T-MOBILE USA, INC. 1
INTRADO COMMUNICATIONS, LLC 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
2016-05-26 920-600-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2016-05-26 920-600-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2016-05-26 920-600-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2016-05-24 920-857-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2016-05-13 920-542-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 FTATKINSON WI
2016-05-11 920-479-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K OSHKOSH WI
2016-05-03 920-949-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WI 6274 KAUKAUNA WI
2016-04-29 920-301-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C GREEN BAY WI
2016-04-29 920-301-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C GREEN BAY WI
2016-04-22 920-280-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C LTL CHUTE WI
2016-04-22 920-280-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C LTL CHUTE WI
2016-04-22 920-310-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C KEWAUNEE WI
2016-04-22 920-310-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C KEWAUNEE WI
2016-04-22 920-351-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C DE PERE WI
2016-04-22 920-351-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C DE PERE WI
2016-04-22 920-352-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C VAN DYNE WI
2016-04-22 920-389-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C NEW LONDON WI
2016-04-22 920-389-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C NEW LONDON WI
2016-04-22 920-521-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C NEENAH WI
2016-04-22 920-521-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C NEENAH WI
2016-04-22 920-600-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C GREEN BAY WI
2016-04-22 920-600-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C GREEN BAY WI
2016-04-22 920-695-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C STURGEONBY WI
2016-04-22 920-695-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C STURGEONBY WI
2016-04-22 920-764-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C WRIGHTSTN WI
2016-04-22 920-764-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C WRIGHTSTN WI
2016-04-22 920-859-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C OMRO WI
2016-04-22 920-859-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C OMRO WI
2016-04-22 920-861-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C WINNECONNE WI
2016-04-22 920-861-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C WINNECONNE WI
2016-04-22 920-877-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C HORTONVL WI
2016-04-22 920-877-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C HORTONVL WI
2016-04-22 920-880-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C ALGOMA WI
2016-04-22 920-880-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C ALGOMA WI
2016-04-22 920-891-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C OSHKOSH WI
2016-04-22 920-891-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C OSHKOSH WI
2016-04-22 920-949-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C KAUKAUNA WI
2016-04-22 920-949-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C KAUKAUNA WI
2016-04-20 920-632-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DE PERE WI
2016-04-20 920-632-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DE PERE WI
2016-04-20 920-833-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SEYMOUR WI
2016-04-20 920-865-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILLCENTER WI
2016-04-20 920-866-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWFRANKEN WI
2016-04-18 920-600-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J GREEN BAY WI
2016-04-18 920-600-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J GREEN BAY WI
2016-04-14 920-515-1XXX 1000–1999Assigned METROPCS, INC. 5562 APPLETON WI
2016-04-14 920-515-5XXX 5000–5999Assigned METROPCS, INC. 5562 APPLETON WI
2016-04-14 920-888-0XXX 0000–0999Assigned METROPCS, INC. 5562 GREEN BAY WI
2016-04-14 920-888-5XXX 5000–5999Assigned METROPCS, INC. 5562 GREEN BAY WI
2016-04-14 920-888-6XXX 6000–6999Assigned METROPCS, INC. 5562 GREEN BAY WI

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.