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
2017-01-11 732-273-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNELLEN NJ
2017-01-11 732-273-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNELLEN NJ
2017-01-11 732-273-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNELLEN NJ
2017-01-11 732-273-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNELLEN NJ
2017-01-11 732-273-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNELLEN NJ
2017-01-11 732-273-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNELLEN NJ
2017-01-11 732-273-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNELLEN NJ
2017-01-11 732-394-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DUNELLEN NJ
2017-01-11 848-254-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN NJ
2017-01-11 848-254-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN NJ
2017-01-11 848-254-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MIDDLETOWN NJ
2017-01-10 207-383-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WINDHAM ME
2017-01-05 508-383-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2017-01-05 508-383-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FRAMINGHAM MA
2017-01-05 603-322-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W LEBANON NH
2016-12-30 484-510-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BETHLEHEM PA
2016-12-30 484-587-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 POTTSTOWN PA
2016-12-30 484-627-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 EASTON PA
2016-12-30 774-409-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TAUNTON MA
2016-12-30 781-660-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WEYMOUTH MA
2016-12-27 484-473-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-12-27 484-473-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 W CHESTER PA
2016-12-22 475-279-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DANBURY CT
2016-12-22 781-732-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LYNN MA
2016-12-22 862-297-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATERSON NJ
2016-12-22 908-332-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOMERVILLE NJ
2016-12-22 973-977-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PATERSON NJ
2016-12-22 978-402-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CONCORD MA
2016-12-22 978-402-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CONCORD MA
2016-12-21 267-742-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 DOYLESTOWN PA
2016-12-21 272-209-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WILLIAMSPT PA
2016-12-21 717-804-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RED LION PA
2016-12-20 540-779-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STAFFORD VA
2016-12-19 207-507-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RUMFORD ME
2016-12-15 774-222-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEWTR MA
2016-12-15 774-281-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEWTR MA
2016-12-15 774-619-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BRIDGEWTR MA
2016-12-12 304-702-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARTINSBG WV
2016-12-02 973-758-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LIVINGSTON NJ
2016-11-30 207-401-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BANGOR ME
2016-11-18 774-813-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WHITINSVL MA
2016-11-18 774-813-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WHITINSVL MA
2016-11-17 959-282-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HARTFORD CT
2016-11-16 484-861-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
2016-11-16 717-607-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEWISTOWN PA
2016-11-14 484-500-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PUGHTOWN PA
2016-11-14 484-507-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FLEETWOOD PA
2016-11-14 516-534-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2016-11-14 516-534-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY
2016-11-14 516-591-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NASSAUZN05 NY

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.