NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2010-07-12 920-395-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F SHEBOYGAN WI
2010-07-12 920-397-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F FTATKINSON WI
2010-07-12 920-482-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MANITOWOC WI
2010-07-12 920-541-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F JEFFERSON WI
2010-07-12 920-550-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F SHEBOGNFLS WI
2010-07-09 920-543-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BURNETT WI
2010-07-09 920-573-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSHKOSH WI
2010-07-09 920-843-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2010-07-07 920-636-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2010-06-18 920-933-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FONDDU LAC WI
2010-06-15 920-322-2XXX 2000–2999Assigned TDS METROCOM, LLC 520K FONDDU LAC WI
2010-06-15 920-593-7XXX 7000–7999Assigned TDS METROCOM, LLC 520K GREEN BAY WI
2010-06-15 920-750-7XXX 7000–7999Assigned TDS METROCOM, LLC 520K APPLETON WI
2010-06-15 920-784-2XXX 2000–2999Assigned TDS METROCOM, LLC 520K GREEN BAY WI
2010-05-27 920-530-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2010-05-27 920-917-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHEBOYGAN WI
2010-05-24 920-215-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F NEENAH WI
2010-05-24 920-245-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WATERTOWN WI
2010-05-24 920-372-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F KAUKAUNA WI
2010-05-24 920-423-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F LTL CHUTE WI
2010-05-24 920-659-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F APPLETON WI
2010-05-21 920-455-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F GREEN BAY WI
2010-05-21 920-455-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F GREEN BAY WI
2010-05-19 920-358-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2010-05-19 920-358-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2010-05-19 920-392-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 BEAVER DAM WI
2010-05-19 920-460-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2010-05-19 920-636-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 APPLETON WI
2010-04-22 920-370-3XXX 3000–3999Assigned NEW CELL DBA CELLCOM 6692 GREEN BAY WI
2010-04-22 920-370-5XXX 5000–5999Assigned NEW CELL DBA CELLCOM 6692 GREEN BAY WI
2010-04-22 920-370-6XXX 6000–6999Assigned NEW CELL DBA CELLCOM 6692 GREEN BAY WI
2010-04-22 920-412-9XXX 9000–9999Assigned NEW CELL DBA CELLCOM 6692 GREEN BAY WI
2010-04-22 920-445-4XXX 4000–4999Assigned NEW CELL DBA CELLCOM 6692 GREEN BAY WI
2010-03-22 920-252-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F OSHKOSH WI
2010-03-22 920-645-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MANITOWOC WI
2010-03-18 920-643-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HORICON WI
2010-03-11 920-644-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J MAYVILLE WI
2010-03-08 920-204-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F FONDDU LAC WI
2010-03-08 920-374-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MANITOWOC WI
2010-03-08 920-397-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F FTATKINSON WI
2010-03-08 920-541-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F JEFFERSON WI
2010-03-02 920-288-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F GREEN BAY WI
2010-03-01 920-202-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 APPLETON WI
2010-02-26 920-557-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 BEAVER DAM WI
2010-02-22 920-550-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F SHEBOGNFLS WI
2010-02-19 920-309-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F DE PERE WI
2010-02-19 920-643-5XXX 5000–5999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E HORICON WI
2010-02-19 920-643-6XXX 6000–6999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E HORICON WI
2010-02-19 920-643-8XXX 8000–8999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E HORICON WI
2010-02-19 920-659-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F APPLETON WI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.