NumberResearch Membership · Data 09/30/2026

Recent thousands-block assignments

4,221 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/30/2026

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
NEW CINGULAR WIRELESS PCS, LLC - DC 302
NEW CINGULAR WIRELESS PCS, LLC - IL 256
EXIANT COMMUNICATIONS LLC 245
INTRADO COMMUNICATIONS, LLC 172
ONVOY, LLC - CA 144
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2025-09-10 936-746-1XXX 1000–1999Assigned TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 583C ONALASKA TX
2025-09-10 937-326-5XXX 5000–5999Assigned ONVOY, LLC - OH 464C MSBGWCRLTN OH
2025-09-10 937-326-6XXX 6000–6999Assigned ONVOY, LLC - OH 464C MSBGWCRLTN OH
2025-09-10 937-916-6XXX 6000–6999Assigned TERRA NOVA TELECOM INC. 145J PIQUA OH
2025-09-10 945-402-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 945-402-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 945-402-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 945-402-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 945-402-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 945-402-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 945-402-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 945-402-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 945-402-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 945-402-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DALLAS TX
2025-09-10 948-236-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2025-09-10 948-236-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2025-09-10 948-236-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2025-09-10 948-240-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2025-09-10 948-240-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2025-09-10 948-240-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2025-09-10 948-240-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2025-09-10 948-240-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2025-09-10 970-303-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F WINDSOR CO
2025-09-10 970-571-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F STERLING CO
2025-09-10 970-608-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J GREELEY CO
2025-09-10 970-913-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CO 078F LA SALLE CO
2025-09-10 978-673-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J ORANGE MA
2025-09-10 978-945-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J HAVERHILL MA
2025-09-10 989-447-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J ST CHARLES MI
2025-09-10 989-528-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J AKRON MI
2025-09-10 989-545-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J BAY CITY MI
2025-09-09 229-756-3XXX 3000–3999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 MOULTRIE GA
2025-09-09 229-756-5XXX 5000–5999Assigned POWERTEL ATLANTA LICENSES, INC. 7473 MOULTRIE GA
2025-09-09 269-478-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 KALAMAZOO MI
2025-09-09 269-478-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 KALAMAZOO MI
2025-09-09 269-478-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 KALAMAZOO MI
2025-09-09 313-809-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DETROITZN5 MI
2025-09-09 313-809-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DETROITZN5 MI
2025-09-09 313-809-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DETROITZN5 MI
2025-09-09 313-809-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DETROITZN5 MI
2025-09-09 313-809-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 DETROITZN5 MI
2025-09-09 314-430-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 LADUE MO
2025-09-09 314-430-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 LADUE MO
2025-09-09 326-240-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 MARYSVILLE OH
2025-09-09 327-324-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MT HOME AR
2025-09-09 369-444-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2025-09-09 401-381-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W WARWICK RI
2025-09-09 413-490-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GREENFIELD MA
2025-09-09 423-659-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COPPERBSIN TN
2025-09-09 423-671-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CHATTNOOGA TN

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.