NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

307 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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
2016-07-15 518-709-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SCHENCTADY NY
2016-07-15 518-805-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TROY NY
2016-07-15 631-304-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2016-07-15 845-420-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWBURGH NY
2016-07-15 914-817-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOUNTKISCO NY
2016-07-15 934-777-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2016-07-15 934-777-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2016-07-15 934-777-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2016-07-15 934-777-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRENTWOOD NY
2016-07-14 603-409-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LACONIA NH
2016-07-13 276-433-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHLANDS VA
2016-07-13 315-776-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PORT BYRON NY
2016-07-13 571-260-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DALE CITY VA
2016-07-13 571-260-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DALE CITY VA
2016-07-13 571-320-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TRIANGLE VA
2016-07-13 571-373-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2016-07-13 571-585-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN19 VA
2016-07-13 571-639-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ARCOLA VA
2016-07-12 606-781-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MEADS KY
2016-07-08 681-318-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEWISBURG WV
2016-07-08 681-323-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BLUEFIELD WV
2016-07-08 681-378-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HNTNGTNZN1 WV
2016-07-07 606-254-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MEADS KY
2016-07-07 606-585-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MEADS KY
2016-07-07 978-493-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MAYNARD MA
2016-07-05 609-383-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLEASANTVL NJ
2016-07-05 609-775-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TRENTON NJ
2016-07-05 856-272-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOODBURY NJ
2016-07-05 856-573-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2016-07-05 856-617-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HADDON HTS NJ
2016-07-05 862-296-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SUCCASUNNA NJ
2016-07-05 862-774-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 POMPTONLKS NJ
2016-07-05 908-200-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CLINTON NJ
2016-07-05 908-356-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLAINFIELD NJ
2016-07-01 339-214-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORWELL MA
2016-07-01 401-298-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WARWICK RI
2016-07-01 774-241-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STURBRIDGE MA
2016-07-01 774-310-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EDGARTOWN MA
2016-07-01 774-432-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2016-07-01 774-707-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2016-07-01 857-499-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 QUINCY MA
2016-06-29 267-920-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MORRISVL PA
2016-06-27 315-830-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWARK NY
2016-06-27 518-401-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GLENSFALLS NY
2016-06-27 607-302-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELMIRA NY
2016-06-27 716-294-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 JAMESTOWN NY
2016-06-27 716-473-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANCASTER NY
2016-06-23 207-539-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 OXFORD ME
2016-06-23 207-598-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 COLUMBIA ME
2016-06-23 240-805-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 GAITHERSBG MD

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.