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
2012-01-20 571-383-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANASSAS VA
2012-01-20 571-383-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANASSAS VA
2012-01-20 571-383-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANASSAS VA
2012-01-20 571-393-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANASSAS VA
2012-01-20 571-528-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEESBURG VA
2012-01-20 571-528-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEESBURG VA
2012-01-20 571-528-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEESBURG VA
2012-01-20 630-473-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2012-01-20 708-657-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FOREST IL
2012-01-20 803-334-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JOHNSTON SC
2012-01-20 803-610-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLOVER SC
2012-01-20 803-825-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MANNING SC
2012-01-20 803-847-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SUMTER SC
2012-01-20 804-454-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHESTER VA
2012-01-20 804-621-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHESTER VA
2012-01-20 804-790-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHESTER VA
2012-01-20 815-558-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2012-01-20 847-964-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEERFIELD IL
2012-01-19 224-650-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUNTLEY IL
2012-01-19 708-541-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLUEISLAND IL
2012-01-19 708-541-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLUEISLAND IL
2012-01-19 863-263-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARCADIA FL
2012-01-19 863-263-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ARCADIA FL
2012-01-19 863-589-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAKE WALES FL
2012-01-19 863-840-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAKEPLACID FL
2012-01-18 203-343-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2012-01-18 203-343-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2012-01-18 209-588-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNRA MAIN CA
2012-01-18 209-813-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ANGELSCAMP CA
2012-01-18 251-288-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2012-01-18 253-442-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMA WA
2012-01-18 260-503-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 COLUMBIACY IN
2012-01-18 559-467-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TULARE CA
2012-01-18 559-514-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MADERA CA
2012-01-18 574-992-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LOGANSPORT IN
2012-01-18 617-637-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JAMAICA PL MA
2012-01-18 617-637-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JAMAICA PL MA
2012-01-18 650-808-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SSNFRNCSCO CA
2012-01-18 707-474-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VACAVILLE CA
2012-01-18 707-656-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VALLEJO CA
2012-01-18 765-761-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ATTICA IN
2012-01-18 774-284-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANSFIELD MA
2012-01-18 781-987-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWELL MA
2012-01-18 903-787-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TYLER TX
2012-01-18 908-210-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOMERVILLE NJ
2012-01-18 908-210-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOMERVILLE NJ
2012-01-18 978-809-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANDOVER MA
2012-01-18 978-810-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BEVERLY MA
2012-01-17 224-360-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MUNDELEIN IL
2012-01-17 518-545-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALBANY NY

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.