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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-10-25 920-215-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F NEENAH WI
2010-10-25 920-245-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K WATERTOWN WI
2010-10-25 920-306-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F BEAVER DAM WI
2010-10-25 920-328-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F GREEN BAY WI
2010-10-25 920-400-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K PLYMOUTH WI
2010-10-25 920-447-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K RANDOMLAKE WI
2010-10-25 920-552-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K OOSTBURG WI
2010-10-25 920-646-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K CLEVELAND WI
2010-10-25 920-668-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K CEDARGROVE WI
2010-10-25 920-710-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F HORTONVL WI
2010-10-25 920-781-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K ELKHART LK WI
2010-10-21 920-288-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2010-10-20 920-530-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2010-10-20 920-652-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANITOWOC WI
2010-10-14 920-840-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2010-10-08 920-462-5XXX 5000–5999Assigned TDS METROCOM, LLC 520K KAUKAUNA WI
2010-10-08 920-687-7XXX 7000–7999Assigned TDS METROCOM, LLC 520K LTL CHUTE WI
2010-10-06 920-392-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 BEAVER DAM WI
2010-09-30 920-237-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OSHKOSH WI
2010-09-30 920-857-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2010-09-30 920-917-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHEBOYGAN WI
2010-09-24 920-944-4XXX 4000–4999Assigned METROPCS, INC. 5562 APPLETON WI
2010-09-24 920-944-5XXX 5000–5999Assigned METROPCS, INC. 5562 APPLETON WI
2010-09-10 920-385-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 OSHKOSH WI
2010-09-08 920-240-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WI 6274 WAUTOMA WI
2010-09-08 920-245-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WATERTOWN WI
2010-09-08 920-423-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F LTL CHUTE WI
2010-09-08 920-445-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F GREEN BAY WI
2010-09-08 920-462-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F KAUKAUNA WI
2010-09-08 920-659-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F APPLETON WI
2010-09-03 920-569-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 GREEN BAY WI
2010-08-31 920-341-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F CLYMAN WI
2010-08-17 920-412-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GREEN BAY WI
2010-08-17 920-530-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2010-08-16 920-449-2XXX 2000–2999Assigned METRO SOUTHWEST PCS, LLP 9759 PLYMOUTH WI
2010-08-13 920-843-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APPLETON WI
2010-08-09 920-219-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BEAVER DAM WI
2010-08-09 920-573-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OSHKOSH WI
2010-08-06 920-249-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F NEW LONDON WI
2010-08-06 920-267-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F OSHKOSH WI
2010-07-30 920-204-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FONDDU LAC WI
2010-07-20 920-829-1XXX 1000–1999Assigned PLTC, LLC - WI 375F LENA WI
2010-07-19 920-445-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2010-07-19 920-768-1XXX 1000–1999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E FALL RIVER WI
2010-07-19 920-768-2XXX 2000–2999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E FALL RIVER WI
2010-07-19 920-768-3XXX 3000–3999Assigned MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 698E FALL RIVER WI
2010-07-19 920-897-1XXX 1000–1999Assigned PLTC, LLC - WI 375F COLEMAN WI
2010-07-16 920-333-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F STURGEONBY WI
2010-07-13 920-309-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F DE PERE WI
2010-07-12 920-204-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F FONDDU LAC 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.