NumberResearch Membership · Data 09/26/2026

Recent thousands-block assignments

295 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026

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 - IL 295
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
2017-07-27 586-519-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTERLINE MI
2017-07-27 920-396-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2017-07-27 920-396-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2017-07-27 920-396-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2017-07-27 920-396-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2017-07-25 231-743-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARION MI
2017-07-25 248-750-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2017-07-25 248-750-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2017-07-25 248-750-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2017-07-25 248-799-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SOUTHFIELD MI
2017-07-25 405-920-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2017-07-25 405-920-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMOND OK
2017-07-25 512-460-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2017-07-25 512-460-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2017-07-25 512-502-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2017-07-25 512-647-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2017-07-25 512-647-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2017-07-25 810-219-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2017-07-25 810-219-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2017-07-25 810-219-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2017-07-25 810-219-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FLINT MI
2017-07-18 314-347-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2017-07-18 314-347-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2017-07-18 314-415-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2017-07-18 314-439-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2017-07-17 346-351-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2017-07-17 346-351-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2017-07-17 346-351-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2017-07-17 734-294-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEVILLE MI
2017-07-17 947-201-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2017-07-17 947-201-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2017-07-17 947-201-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2017-07-17 947-201-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUBURN HTS MI
2017-07-13 248-954-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2017-07-13 248-954-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2017-07-13 248-954-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2017-07-13 248-954-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2017-07-13 248-954-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FARMINGTON MI
2017-07-10 512-566-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAMPASAS TX
2017-07-10 940-799-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DECATUR TX
2017-07-07 346-246-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TOMBALL TX
2017-07-07 346-246-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TOMBALL TX
2017-07-07 346-754-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2017-07-07 346-803-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2017-07-07 346-803-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2017-07-07 346-803-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2017-07-07 346-907-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2017-07-07 479-367-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2017-07-07 479-367-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2017-07-07 479-367-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.