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
2014-09-24 920-402-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WEYAUWEGA WI
2014-09-24 920-542-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F FTATKINSON WI
2014-09-24 920-635-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PLYMOUTH WI
2014-09-23 920-664-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2014-09-23 920-664-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2014-09-15 920-241-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 DE PERE WI
2014-09-15 920-260-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MARKESAN WI
2014-09-15 920-282-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 CAMBRIA WI
2014-09-10 920-221-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2014-09-08 920-415-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 LTL CHUTE WI
2014-08-22 920-770-6XXX 6000–6999Assigned NEW CELL DBA CELLCOM 6692 GREEN BAY WI
2014-08-22 920-770-7XXX 7000–7999Assigned NEW CELL DBA CELLCOM 6692 GREEN BAY WI
2014-08-22 920-770-8XXX 8000–8999Assigned NEW CELL DBA CELLCOM 6692 GREEN BAY WI
2014-08-14 920-664-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2014-08-06 920-215-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C NEENAH WI
2014-08-06 920-365-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 ALGOMA WI
2014-08-05 920-221-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C APPLETON WI
2014-08-05 920-221-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C APPLETON WI
2014-08-05 920-456-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C OSHKOSH WI
2014-08-05 920-461-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2014-07-29 920-372-8XXX 8000–8999Assigned UNITED STATES CELLULAR - WI 6274 KAUKAUNA WI
2014-07-25 920-221-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2014-07-23 920-664-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2014-07-14 920-316-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OOSTBURG WI
2014-07-02 920-664-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2014-07-01 920-476-2XXX 2000–2999Assigned METROPCS, INC. 5562 SHEBOYGAN WI
2014-06-26 920-632-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K DE PERE WI
2014-06-26 920-857-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K GREEN BAY WI
2014-06-26 920-903-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K APPLETON WI
2014-06-25 920-486-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K NEENAH WI
2014-06-06 920-240-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAUTOMA WI
2014-06-06 920-290-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BERLIN WI
2014-06-06 920-402-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEYAUWEGA WI
2014-06-06 920-461-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2014-06-06 920-767-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARKESAN WI
2014-06-06 920-807-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN LAKE WI
2014-06-06 920-878-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEW LONDON WI
2014-06-05 920-489-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2014-06-05 920-489-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2014-06-05 920-489-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2014-06-05 920-489-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2014-06-05 920-489-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2014-06-05 920-509-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2014-06-05 920-509-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2014-06-05 920-509-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2014-06-05 920-509-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2014-06-05 920-509-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2014-06-05 920-558-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NEENAH WI
2014-06-05 920-558-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NEENAH WI
2014-06-05 920-558-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NEENAH 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.