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
2017-04-10 920-472-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 NEW LONDON WI
2017-04-10 920-570-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-03-30 920-515-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2017-03-30 920-515-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2017-03-30 920-515-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2017-03-30 920-515-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2017-03-28 920-532-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WRIGHTSTN WI
2017-03-15 920-308-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 FTATKINSON WI
2017-03-15 920-532-3XXX 3000–3999Assigned NEW CELL DBA CELLCOM 6692 WRIGHTSTN WI
2017-03-07 920-866-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWFRANKEN WI
2017-03-03 920-666-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-03-03 920-666-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-03-02 920-306-8XXX 8000–8999Assigned TELNYX LLC 073H BEAVER DAM WI
2017-03-02 920-320-0XXX 0000–0999Assigned TELNYX LLC 073H MANITOWOC WI
2017-03-02 920-375-8XXX 8000–8999Assigned TELNYX LLC 073H FONDDU LAC WI
2017-03-02 920-377-7XXX 7000–7999Assigned TELNYX LLC 073H SHEBOYGAN WI
2017-02-24 920-454-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-01-30 920-492-6XXX 6000–6999Assigned METROPCS, INC. 5562 GREEN BAY WI
2017-01-27 920-532-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WRIGHTSTN WI
2017-01-23 920-214-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C MAYVILLE WI
2017-01-23 920-651-2XXX 2000–2999Assigned METROPCS, INC. 5562 OSHKOSH WI
2017-01-23 920-651-5XXX 5000–5999Assigned METROPCS, INC. 5562 OSHKOSH WI
2017-01-23 920-970-2XXX 2000–2999Assigned METROPCS, INC. 5562 FONDDU LAC WI
2016-12-21 920-476-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 SHEBOYGAN WI
2016-11-22 920-666-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 APPLETON WI
2016-11-18 920-383-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEENAH WI
2016-11-17 920-666-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2016-11-09 920-391-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2016-11-09 920-572-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2016-11-09 920-572-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2016-11-07 920-454-1XXX 1000–1999Assigned TDS METROCOM, LLC 520K APPLETON WI
2016-11-07 920-454-2XXX 2000–2999Assigned TDS METROCOM, LLC 520K APPLETON WI
2016-11-07 920-454-3XXX 3000–3999Assigned TDS METROCOM, LLC 520K APPLETON WI
2016-11-07 920-454-4XXX 4000–4999Assigned TDS METROCOM, LLC 520K APPLETON WI
2016-11-07 920-454-5XXX 5000–5999Assigned TDS METROCOM, LLC 520K APPLETON WI
2016-11-07 920-454-6XXX 6000–6999Assigned TDS METROCOM, LLC 520K APPLETON WI
2016-11-07 920-454-7XXX 7000–7999Assigned TDS METROCOM, LLC 520K APPLETON WI
2016-11-07 920-454-8XXX 8000–8999Assigned TDS METROCOM, LLC 520K APPLETON WI
2016-11-07 920-767-3XXX 3000–3999Assigned UNITED STATES CELLULAR - WI 6274 MARKESAN WI
2016-11-04 920-542-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FTATKINSON WI
2016-10-27 920-926-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FONDDU LAC WI
2016-10-26 920-519-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLACKCREEK WI
2016-10-21 920-329-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 GREEN LAKE WI
2016-10-19 920-283-0XXX 0000–0999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F GREEN BAY WI
2016-10-19 920-283-1XXX 1000–1999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F GREEN BAY WI
2016-10-19 920-283-2XXX 2000–2999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F GREEN BAY WI
2016-10-19 920-283-3XXX 3000–3999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F GREEN BAY WI
2016-10-19 920-283-4XXX 4000–4999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F GREEN BAY WI
2016-10-19 920-283-5XXX 5000–5999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F GREEN BAY WI
2016-10-19 920-283-8XXX 8000–8999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F 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.