NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 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 3
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
2018-06-27 920-247-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2018-06-27 920-247-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2018-06-22 920-401-0XXX 0000–0999Assigned INTEGRATED PATH COMMUNICATIONS, LLC - WI 766H GREEN BAY WI
2018-05-09 920-238-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 FONDDU LAC WI
2018-05-09 920-387-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C MAYVILLE WI
2018-05-07 920-350-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F COLUMBUS WI
2018-04-27 920-633-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SISTER BAY WI
2018-04-20 920-204-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FONDDU LAC WI
2018-04-20 920-226-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SHEBOYGAN WI
2018-04-18 920-442-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 APPLETON WI
2018-04-17 920-390-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C WATERTOWN WI
2018-04-16 920-247-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C GREEN BAY WI
2018-04-16 920-280-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C LTL CHUTE WI
2018-04-16 920-389-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C NEW LONDON WI
2018-04-16 920-424-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C OSHKOSH WI
2018-04-16 920-442-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C APPLETON WI
2018-04-13 920-309-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 DE PERE WI
2018-04-04 920-484-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FALL RIVER WI
2018-03-27 920-442-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2018-03-27 920-442-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2018-03-27 920-442-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 APPLETON WI
2018-03-01 920-276-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 THERESA WI
2018-03-01 920-399-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 OCONTO FLS WI
2018-03-01 920-969-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEENAH WI
2018-02-07 920-400-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PLYMOUTH WI
2018-02-05 920-247-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 GREEN BAY WI
2018-01-31 920-661-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2018-01-26 920-309-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DE PERE WI
2018-01-26 920-442-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2018-01-17 920-821-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVER DAM WI
2018-01-17 920-821-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVER DAM WI
2018-01-16 920-396-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2018-01-16 920-642-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OSHKOSH WI
2017-12-20 920-677-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWFRANKEN WI
2017-12-19 920-247-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D GREEN BAY WI
2017-12-06 920-464-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C CHILTON WI
2017-12-05 920-396-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2017-12-05 920-396-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2017-12-04 920-404-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-12-04 920-404-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-11-27 920-633-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C SISTER BAY WI
2017-11-14 920-868-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C EGG HARBOR WI
2017-11-02 920-289-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PICKETT WI
2017-11-02 920-745-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 RIPON WI
2017-10-25 920-381-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-10-25 920-381-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-10-25 920-381-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-10-25 920-381-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-10-25 920-381-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2017-10-24 920-396-3XXX 3000–3999Assigned 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.