NumberResearch Membership · Data 09/26/2026

Recent thousands-block assignments

4,286 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026

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 323
NEW CINGULAR WIRELESS PCS, LLC - IL 295
EXIANT COMMUNICATIONS LLC 245
ONVOY, LLC - CA 200
NEW CINGULAR WIRELESS PCS, LLC 135
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
2026-03-18 667-544-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PIKESVILLE MD
2026-03-18 686-210-1XXX 1000–1999Assigned ONVOY, LLC - VA 138E RICHMOND VA
2026-03-18 686-210-2XXX 2000–2999Assigned ONVOY, LLC - VA 138E RICHMOND VA
2026-03-18 686-465-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHMOND VA
2026-03-18 686-465-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHMOND VA
2026-03-18 686-465-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHMOND VA
2026-03-18 686-465-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHMOND VA
2026-03-18 686-465-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHMOND VA
2026-03-18 686-465-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHMOND VA
2026-03-18 704-340-9XXX 9000–9999Assigned ONVOY, LLC - NC 638E CHARLOTTE NC
2026-03-18 707-355-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MIDDLETOWN CA
2026-03-18 730-296-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 RED BUD IL
2026-03-18 743-210-4XXX 4000–4999Assigned ONVOY, LLC - NC 638E WALKERTOWN NC
2026-03-18 747-362-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2026-03-18 747-499-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2026-03-18 763-998-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2026-03-18 763-998-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2026-03-18 763-998-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2026-03-18 763-998-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2026-03-18 763-998-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 5816 TWINCITIES MN
2026-03-18 765-257-4XXX 4000–4999Assigned ONVOY, LLC - IN 097D WINCHESTER IN
2026-03-18 804-710-4XXX 4000–4999Assigned ONVOY, LLC - VA 138E VARINA VA
2026-03-18 805-849-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CONEJO CA
2026-03-18 848-406-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAKEWOOD NJ
2026-03-18 858-441-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7147 EL CAJON CA
2026-03-18 865-332-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E KNOXVILLE TN
2026-03-18 878-297-2XXX 2000–2999Assigned ONVOY, LLC - PA 547E WASHINGTON PA
2026-03-18 878-306-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E UNIONTOWN PA
2026-03-18 901-750-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E MEMPHIS TN
2026-03-18 907-673-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AK 9413 ANCHORAGE AK
2026-03-18 907-673-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AK 9413 ANCHORAGE AK
2026-03-18 908-613-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C UNIONVILLE NJ
2026-03-18 910-805-3XXX 3000–3999Assigned ONVOY, LLC - NC 638E WILMINGTON NC
2026-03-18 910-805-4XXX 4000–4999Assigned ONVOY, LLC - NC 638E WILMINGTON NC
2026-03-18 925-331-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2026-03-18 925-512-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C WALNUT CRK CA
2026-03-18 925-554-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2026-03-18 925-554-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2026-03-18 925-554-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ANTIOCH CA
2026-03-18 930-271-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWBURGH IN
2026-03-18 931-479-1XXX 1000–1999Assigned ONVOY, LLC - TN 525E CLARKSVL TN
2026-03-18 937-389-8XXX 8000–8999Assigned ONVOY, LLC - OH 464C DAYTON OH
2026-03-18 937-389-9XXX 9000–9999Assigned ONVOY, LLC - OH 464C DAYTON OH
2026-03-18 937-983-1XXX 1000–1999Assigned ONVOY, LLC - OH 464C TIPP CITY OH
2026-03-18 938-316-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 HUNTSVILLE AL
2026-03-18 948-639-4XXX 4000–4999Assigned OPENTACT INC. 824J NRFOLKZON2 VA
2026-03-18 949-890-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C TRABUCO CA
2026-03-18 959-268-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT 6388 GLASTONBY CT
2026-03-18 971-587-8XXX 8000–8999Assigned AHOI LLC 883K PORTLAND OR
2026-03-18 980-531-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 CHARLOTTE NC

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.