NumberResearch Membership · Data 09/29/2026

Recent thousands-block assignments

855 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/29/2026

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
2011-01-31 203-443-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MERIDEN CT
2011-01-31 203-822-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2011-01-31 203-822-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWALK CT
2011-01-31 203-892-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2011-01-31 203-892-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ANSONIDRBY CT
2011-01-31 240-848-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GAITHERSBG MD
2011-01-31 240-848-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GAITHERSBG MD
2011-01-31 260-242-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KENDALLVL IN
2011-01-31 443-485-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELKTON MD
2011-01-31 571-335-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2011-01-31 571-358-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANASSAS VA
2011-01-31 571-358-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANASSAS VA
2011-01-31 571-358-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANASSAS VA
2011-01-31 571-421-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2011-01-31 571-421-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2011-01-31 571-421-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2011-01-31 571-528-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEESBURG VA
2011-01-31 571-528-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEESBURG VA
2011-01-31 574-376-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WARSAW IN
2011-01-31 603-583-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EXETER NH
2011-01-31 703-776-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2011-01-31 717-855-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 YORK PA
2011-01-31 724-982-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHARON PA
2011-01-31 774-284-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MANSFIELD MA
2011-01-31 781-530-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2011-01-31 781-530-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WALTHAM MA
2011-01-31 781-742-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2011-01-31 781-742-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2011-01-31 781-742-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DEDHAM MA
2011-01-31 814-290-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEARFIELD PA
2011-01-31 860-382-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PUTNAM CT
2011-01-31 860-801-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWBRITAIN CT
2011-01-31 860-801-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWBRITAIN CT
2011-01-31 956-336-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BROWNSVL TX
2011-01-31 956-336-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BROWNSVL TX
2011-01-31 971-400-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2011-01-31 971-400-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2011-01-31 971-400-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PORTLAND OR
2011-01-28 201-590-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 UNION CITY NJ
2011-01-28 217-979-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAMPAURBN IL
2011-01-28 415-529-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL CA
2011-01-28 415-813-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL CA
2011-01-28 415-813-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL CA
2011-01-28 415-813-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL CA
2011-01-28 415-813-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL CA
2011-01-28 415-815-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL CA
2011-01-28 415-815-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL CA
2011-01-28 609-949-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOUNTHOLLY NJ
2011-01-28 609-949-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOUNTHOLLY NJ
2011-01-28 616-920-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADA MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.