NumberResearch Membership · Data 09/30/2026

Recent thousands-block assignments

855 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 325
NEW CINGULAR WIRELESS PCS, LLC - IL 261
NEW CINGULAR WIRELESS PCS, LLC - GA 136
NEW CINGULAR WIRELESS PCS, LLC 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
2011-10-27 423-800-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHATTNOOGA TN
2011-10-27 423-800-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHATTNOOGA TN
2011-10-27 423-800-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHATTNOOGA TN
2011-10-27 423-800-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHATTNOOGA TN
2011-10-27 484-685-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN30 PA
2011-10-27 504-206-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWORLEANS LA
2011-10-27 504-206-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWORLEANS LA
2011-10-27 504-206-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWORLEANS LA
2011-10-27 504-206-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWORLEANS LA
2011-10-27 631-353-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUTHAMPTN NY
2011-10-27 631-935-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HUNTINGTON NY
2011-10-27 704-390-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHARLOTTE NC
2011-10-27 845-636-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MAYBROOK NY
2011-10-27 914-334-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOUNTKISCO NY
2011-10-27 920-530-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2011-10-26 318-321-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALEXANDRIA LA
2011-10-26 318-321-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALEXANDRIA LA
2011-10-26 318-321-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALEXANDRIA LA
2011-10-26 415-480-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAUSALITO CA
2011-10-26 614-401-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUBLIN OH
2011-10-26 650-863-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN MATEO CA
2011-10-26 650-918-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN MATEO CA
2011-10-26 650-933-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VIEW CA
2011-10-26 661-673-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNCA SGCC CA
2011-10-26 661-673-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNCA SGCC CA
2011-10-26 707-639-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2011-10-26 760-638-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VALLEY CTR CA
2011-10-26 806-390-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STRATFORD TX
2011-10-26 858-230-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA JOLLA CA
2011-10-26 858-230-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LA JOLLA CA
2011-10-26 907-414-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WASILLA AK
2011-10-26 916-895-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ELK GROVE CA
2011-10-26 916-945-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RSVL MAIN CA
2011-10-26 925-334-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CONCORD CA
2011-10-26 925-350-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ANTIOCH CA
2011-10-26 925-964-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DANVILLE CA
2011-10-26 970-286-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FT COLLINS CO
2011-10-25 830-480-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PLEASANTON TX
2011-10-25 903-820-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERMAN TX
2011-10-25 903-910-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MABANK TX
2011-10-25 903-910-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MABANK TX
2011-10-24 234-207-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CANTON OH
2011-10-24 320-339-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST CLOUD MN
2011-10-24 903-307-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SULPHURSPG TX
2011-10-24 903-804-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ATHENS TX
2011-10-24 937-892-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEST UNION OH
2011-10-21 252-643-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 KINSTON NC
2011-10-21 318-317-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHREVEPORT LA
2011-10-21 318-317-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHREVEPORT LA
2011-10-21 318-317-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHREVEPORT LA

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.