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
2020-02-20 920-799-9XXX 9000–9999Assigned FRACTEL, LLC 965H JOHNSBURG WI
2020-02-20 920-871-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C HILBERT WI
2020-02-20 920-894-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C KIEL WI
2020-02-20 920-898-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C NEWHOLSTEN WI
2020-02-20 920-937-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C OAKFIELD WI
2020-02-20 920-994-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C RANDOMLAKE WI
2020-02-18 920-872-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F ROSENDALE WI
2020-02-18 920-928-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F FOX LAKE WI
2020-02-18 920-999-9XXX 9000–9999Assigned FRACTEL, LLC 965H ST CLOUD WI
2020-02-13 920-400-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PLYMOUTH WI
2020-02-13 920-510-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2020-02-13 920-510-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2020-02-13 920-510-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2020-02-13 920-510-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2020-02-12 920-778-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F LARSEN WI
2020-02-12 920-975-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WAYSIDE WI
2020-02-06 920-520-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 FOX LAKE WI
2020-02-04 920-481-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F PRINCETON WI
2020-02-04 920-935-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F PICKETT WI
2020-02-03 920-510-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2020-02-03 920-510-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2020-01-30 920-282-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CAMBRIA WI
2020-01-30 920-614-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F RIO WI
2020-01-23 920-620-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F KINGSTON WI
2020-01-23 920-677-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F NEWFRANKEN WI
2020-01-22 920-825-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BRUSSELS WI
2020-01-22 920-837-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CASCO WI
2020-01-14 920-808-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OSHKOSH WI
2020-01-07 920-930-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2020-01-07 920-930-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GREEN BAY WI
2019-12-26 920-297-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LAKE MILLS WI
2019-12-23 920-970-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FONDDU LAC WI
2019-12-23 920-970-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FONDDU LAC WI
2019-12-17 920-694-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 SHEBOYGAN WI
2019-12-16 920-633-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 SISTER BAY WI
2019-12-12 920-581-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 FONDDU LAC WI
2019-12-11 920-308-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FTATKINSON WI
2019-11-22 920-890-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 EGG HARBOR WI
2019-11-05 920-594-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LARSEN WI
2019-10-29 920-396-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2019-10-29 920-401-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2019-10-29 920-401-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2019-10-29 920-634-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2019-10-24 920-260-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MARKESAN WI
2019-10-24 920-510-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H GREEN BAY WI
2019-10-17 920-508-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WEYAUWEGA WI
2019-10-16 920-502-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 NEENAH WI
2019-10-16 920-952-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 FONDDU LAC WI
2019-10-16 920-990-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C RIPON WI
2019-10-16 920-990-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C RIPON 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.