NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

307 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 307
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
2014-10-07 585-364-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FAIRPORT NY
2014-10-07 607-708-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DRYDEN NY
2014-10-07 716-367-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
2014-10-07 716-367-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
2014-10-07 716-382-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BUFFALO NY
2014-10-07 716-456-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LAKEWOOD NY
2014-10-07 716-489-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JAMESTOWN NY
2014-10-06 603-952-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SALEM NH
2014-10-06 732-894-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELMAR NJ
2014-10-01 585-628-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELFAST NY
2014-10-01 585-635-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EROCHESTER NY
2014-10-01 585-635-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EROCHESTER NY
2014-10-01 585-635-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EROCHESTER NY
2014-10-01 606-316-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 OLIVE HILL KY
2014-10-01 862-276-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLOOMFIELD NJ
2014-10-01 929-254-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN13 NY
2014-10-01 929-273-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN13 NY
2014-10-01 929-273-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN13 NY
2014-10-01 929-284-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN15 NY
2014-10-01 929-294-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN07 NY
2014-10-01 929-294-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN07 NY
2014-10-01 929-294-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN07 NY
2014-10-01 929-294-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN07 NY
2014-10-01 929-327-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN07 NY
2014-10-01 929-428-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN15 NY
2014-10-01 929-428-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN15 NY
2014-09-30 315-776-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORT BYRON NY
2014-09-30 413-406-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHERST MA
2014-09-30 413-406-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHERST MA
2014-09-30 413-406-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 AMHERST MA
2014-09-30 508-656-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2014-09-30 508-834-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2014-09-30 518-333-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FTCOVINGTN NY
2014-09-30 585-449-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELMONT NY
2014-09-30 585-558-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARSAW NY
2014-09-30 607-536-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SAVONA NY
2014-09-30 607-678-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNDEE NY
2014-09-30 607-923-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ODESSA NY
2014-09-30 681-298-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELKINS WV
2014-09-30 716-265-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SALAMANCA NY
2014-09-30 804-414-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHESTER VA
2014-09-30 845-217-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SAUGERTIES NY
2014-09-30 845-673-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCOTCHTOWN NY
2014-09-30 856-242-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOORESTOWN NJ
2014-09-29 570-217-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIFFLINBG PA
2014-09-29 570-491-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MATAMORAS PA
2014-09-29 570-554-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MT CARMEL PA
2014-09-29 570-749-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MILL HALL PA
2014-09-29 802-696-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JOHNSON VT
2014-09-26 201-402-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CLIFFSIDE NJ

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.