NumberResearch Membership · Data 10/02/2026

Recent thousands-block assignments

4,287 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 10/02/2026

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 274
NEW CINGULAR WIRELESS PCS, LLC - IL 223
EXIANT COMMUNICATIONS LLC 191
INTRADO COMMUNICATIONS, LLC 178
OPENTACT INC. 164
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
2025-05-23 531-408-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-408-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-408-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-408-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-408-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-408-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-409-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 531-410-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - NE 7144 OMAHA NE
2025-05-23 557-232-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2025-05-23 557-237-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2025-05-23 557-237-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2025-05-23 557-237-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2025-05-23 563-551-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J DAVENPORT IA
2025-05-23 564-206-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F BREMERTON WA
2025-05-23 605-949-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MILBANK SD
2025-05-23 608-980-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-05-23 608-980-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-05-23 608-980-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 REEDSBURG WI
2025-05-23 715-291-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CRIVITZ WI
2025-05-23 724-347-9XXX 9000–9999Assigned EXIANT COMMUNICATIONS LLC 114J SHARON PA
2025-05-23 724-460-8XXX 8000–8999Assigned EXIANT COMMUNICATIONS LLC 114J ELLWOOD CY PA
2025-05-23 762-403-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WRENS GA
2025-05-23 765-604-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LAPEL IN
2025-05-23 812-217-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BOONVILLE IN
2025-05-23 816-953-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J ST JOSEPH MO
2025-05-23 835-261-8XXX 8000–8999Assigned EXIANT COMMUNICATIONS LLC 114J READING PA
2025-05-23 835-269-1XXX 1000–1999Assigned EXIANT COMMUNICATIONS LLC 114J COATESVL PA
2025-05-23 835-270-1XXX 1000–1999Assigned EXIANT COMMUNICATIONS LLC 114J ALLENTOWN PA
2025-05-23 863-371-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J WINTER HVN FL
2025-05-23 870-638-1XXX 1000–1999Assigned EXIANT COMMUNICATIONS LLC 114J BRINKLEY AR
2025-05-23 870-655-2XXX 2000–2999Assigned EXIANT COMMUNICATIONS LLC 114J WILSON AR
2025-05-23 870-889-3XXX 3000–3999Assigned EXIANT COMMUNICATIONS LLC 114J HUGHES AR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 10/02/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.