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
2020-12-16 920-824-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C LTLSTURGEN WI
2020-12-16 920-824-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C LTLSTURGEN WI
2020-12-16 920-824-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C LTLSTURGEN WI
2020-12-16 920-824-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C LTLSTURGEN WI
2020-12-14 920-630-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F COLUMBUS WI
2020-12-11 920-717-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J MANITOWOC WI
2020-11-23 920-476-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SHEBOYGAN WI
2020-11-18 920-404-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2020-11-18 920-404-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2020-11-18 920-404-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2020-11-18 920-441-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2020-11-18 920-441-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2020-11-18 920-441-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2020-11-05 920-698-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C SHEBOYGAN WI
2020-11-05 920-698-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C SHEBOYGAN WI
2020-11-04 920-416-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C APPLETON WI
2020-11-04 920-416-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C APPLETON WI
2020-11-04 920-416-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C APPLETON WI
2020-11-04 920-416-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C APPLETON WI
2020-11-04 920-932-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C GREEN BAY WI
2020-11-04 920-932-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C GREEN BAY WI
2020-11-04 920-932-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C GREEN BAY WI
2020-11-04 920-932-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C GREEN BAY WI
2020-10-23 920-591-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 COLEMAN WI
2020-10-22 920-325-7XXX 7000–7999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F WAUPUN WI
2020-10-22 920-545-6XXX 6000–6999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F WATERTOWN WI
2020-10-22 920-669-1XXX 1000–1999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F MAYVILLE WI
2020-10-16 920-512-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 APPLETON WI
2020-10-15 920-779-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J HORTONVL WI
2020-10-05 920-384-9XXX 9000–9999Assigned HD CARRIER LLC 321J GREEN BAY WI
2020-10-02 920-278-1XXX 1000–1999Assigned PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F DE PERE WI
2020-10-02 920-375-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FONDDU LAC WI
2020-10-02 920-417-0XXX 0000–0999Assigned AIRESPRING, INC. 996H GREEN BAY WI
2020-09-28 920-930-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2020-09-28 920-930-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2020-09-28 920-932-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2020-09-28 920-932-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2020-09-25 920-372-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WI 6274 KAUKAUNA WI
2020-09-24 920-605-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K JEFFERSON WI
2020-09-09 920-297-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LAKE MILLS WI
2020-09-09 920-297-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LAKE MILLS WI
2020-09-09 920-297-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LAKE MILLS WI
2020-09-09 920-941-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WATERTOWN WI
2020-09-09 920-941-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WATERTOWN WI
2020-09-08 920-791-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BEAVER DAM WI
2020-09-03 920-516-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C OCONTO WI
2020-09-03 920-516-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C OCONTO WI
2020-09-02 920-372-9XXX 9000–9999Assigned STRATUS NETWORKS 495J KAUKAUNA WI
2020-09-02 920-510-0XXX 0000–0999Assigned STRATUS NETWORKS 495J GREEN BAY WI
2020-09-02 920-545-3XXX 3000–3999Assigned STRATUS NETWORKS 495J WATERTOWN 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.