NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

4,126 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 - IL 322
NEW CINGULAR WIRELESS PCS, LLC - DC 307
ONVOY, LLC - CA 199
ONVOY, LLC - NJ 161
ONVOY, LLC - TX 133
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
2026-05-20 956-224-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J ROMA TX
2026-05-20 970-907-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FT COLLINS CO
2026-05-20 970-916-1XXX 1000–1999Assigned ONVOY, LLC - CO 026D ASPEN CO
2026-05-20 971-518-4XXX 4000–4999Assigned ONVOY, LLC - OR 750E SALEM OR
2026-05-20 972-330-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C ENNIS TX
2026-05-20 973-654-0XXX 0000–0999Assigned ONVOY, LLC - NJ 637C CALDWELL NJ
2026-05-20 975-222-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F GREENWOOD MO
2026-05-19 206-927-6XXX 6000–6999Assigned ACCELERATE NETWORKS LLC 147L BAINBDG IS WA
2026-05-19 206-927-9XXX 9000–9999Assigned ACCELERATE NETWORKS LLC 147L BAINBDG IS WA
2026-05-19 262-266-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OCONOMOWOC WI
2026-05-19 262-266-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 OCONOMOWOC WI
2026-05-19 307-483-5XXX 5000–5999Assigned ALL WEST/WYOMING, INC. 3880 RAWLINS WY
2026-05-19 339-255-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WEYMOUTH MA
2026-05-19 352-772-5XXX 5000–5999Assigned POWERTEL JACKSONVILLE LICENSES, INC. 7472 GAINESVL FL
2026-05-19 352-774-2XXX 2000–2999Assigned POWERTEL JACKSONVILLE LICENSES, INC. 7472 GAINESVL FL
2026-05-19 352-774-3XXX 3000–3999Assigned POWERTEL JACKSONVILLE LICENSES, INC. 7472 GAINESVL FL
2026-05-19 409-394-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 TXSCYMARQU TX
2026-05-19 442-445-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BISHOP CA
2026-05-19 515-719-8XXX 8000–8999Assigned METROPCS, INC. 5562 TITONKA IA
2026-05-19 515-744-5XXX 5000–5999Assigned METROPCS, INC. 5562 RADCLIFFE IA
2026-05-19 515-997-5XXX 5000–5999Assigned HD CARRIER LLC 321J DES MOINES IA
2026-05-19 515-997-6XXX 6000–6999Assigned HD CARRIER LLC 321J DES MOINES IA
2026-05-19 517-259-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 JACKSON MI
2026-05-19 531-289-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J LINCOLN NE
2026-05-19 531-391-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 SCHUYLER NE
2026-05-19 531-739-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2026-05-19 531-795-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2026-05-19 531-795-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE 5807 LINCOLN NE
2026-05-19 539-284-5XXX 5000–5999Assigned METROPCS, INC. 5562 CHECOTAH OK
2026-05-19 539-304-5XXX 5000–5999Assigned METROPCS, INC. 5562 GROVE OK
2026-05-19 563-456-6XXX 6000–6999Assigned HD CARRIER LLC 321J DAVENPORT IA
2026-05-19 563-456-7XXX 7000–7999Assigned HD CARRIER LLC 321J DAVENPORT IA
2026-05-19 572-358-6XXX 6000–6999Assigned METROPCS, INC. 5562 CHANDLER OK
2026-05-19 574-774-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GOSHEN IN
2026-05-19 574-774-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GOSHEN IN
2026-05-19 580-557-5XXX 5000–5999Assigned METROPCS, INC. 5562 TONKAWA OK
2026-05-19 580-748-7XXX 7000–7999Assigned METROPCS, INC. 5562 ALVA OK
2026-05-19 602-282-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-895-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-915-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-915-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-915-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-915-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-915-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-915-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-915-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-915-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 602-915-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2026-05-19 608-474-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 ADAMS WI
2026-05-19 615-346-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F NASHVILLE TN

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.