NumberResearch Membership · Data 09/27/2026

Recent thousands-block assignments

4,019 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/27/2026

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 300
NEW CINGULAR WIRELESS PCS, LLC - IL 255
EXIANT COMMUNICATIONS LLC 245
ONVOY, LLC - CA 146
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
2026-02-04 971-528-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2026-02-04 971-528-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2026-02-04 971-528-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2026-02-04 971-530-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2026-02-04 971-530-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2026-02-04 971-530-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2026-02-04 971-530-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2026-02-04 971-530-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2026-02-04 971-530-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2026-02-04 983-500-0XXX 0000–0999Assigned WIDE VOICE, LLC - CO 557H STRASBURG CO
2026-02-04 983-500-5XXX 5000–5999Assigned WIDE VOICE, LLC - CO 557H STRASBURG CO
2026-02-04 984-404-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J RALEIGH NC
2026-02-04 984-404-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J RALEIGH NC
2026-02-04 984-407-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J RALEIGH NC
2026-02-04 984-407-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J RALEIGH NC
2026-02-04 984-407-4XXX 4000–4999Assigned BOOST SUBSCRIBERCO L.L.C. 490J RALEIGH NC
2026-02-04 984-407-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J RALEIGH NC
2026-02-03 227-281-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 FREDERICK MD
2026-02-03 227-281-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 FREDERICK MD
2026-02-03 234-259-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TWINSBURG OH
2026-02-03 234-422-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TWINSBURG OH
2026-02-03 254-679-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GATESVILLE TX
2026-02-03 260-379-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 6725 FORT WAYNE IN
2026-02-03 302-708-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 GEORGETOWN DE
2026-02-03 302-708-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 GEORGETOWN DE
2026-02-03 302-708-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE 6393 GEORGETOWN DE
2026-02-03 308-454-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NE 3233 MAXWELL NE
2026-02-03 331-339-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 AURORA IL
2026-02-03 331-339-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 AURORA IL
2026-02-03 360-781-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2026-02-03 360-781-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2026-02-03 360-781-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2026-02-03 413-673-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 GREATBNGTN MA
2026-02-03 425-592-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F BELLEVUE WA
2026-02-03 447-447-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LINCOLN IL
2026-02-03 517-307-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSON MI
2026-02-03 517-307-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JACKSON MI
2026-02-03 517-770-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANSING MI
2026-02-03 517-770-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANSING MI
2026-02-03 517-770-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANSING MI
2026-02-03 517-855-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANSING MI
2026-02-03 573-370-8XXX 8000–8999Assigned TELNYX LLC 073H GIDEON MO
2026-02-03 573-479-4XXX 4000–4999Assigned TELNYX LLC 073H HAYTI MO
2026-02-03 573-788-4XXX 4000–4999Assigned TELNYX LLC 073H OLDAPPLETN MO
2026-02-03 585-790-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NY
2026-02-03 585-790-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NY
2026-02-03 585-790-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NY
2026-02-03 585-790-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NY
2026-02-03 585-998-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NY
2026-02-03 585-998-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ROCHESTER NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.