NumberResearch Membership · Data 10/04/2026

Recent thousands-block assignments

646 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 10/04/2026

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 204
NEW CINGULAR WIRELESS PCS, LLC 168
NEW CINGULAR WIRELESS PCS, LLC - IL 166
NEW CINGULAR WIRELESS PCS, LLC - GA 108
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2017-09-14 603-409-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LACONIA NH
2017-09-14 717-375-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MARION PA
2017-09-14 727-256-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STPETERSBG FL
2017-09-14 727-256-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STPETERSBG FL
2017-09-14 727-256-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 STPETERSBG FL
2017-09-14 805-585-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VNTRA CNTL CA
2017-09-14 908-348-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELIZABETH NJ
2017-09-14 908-348-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELIZABETH NJ
2017-09-14 908-348-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ELIZABETH NJ
2017-09-14 971-294-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2017-09-14 971-294-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BEAVERTON OR
2017-09-14 978-916-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PEABODY MA
2017-09-14 978-916-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PEABODY MA
2017-09-13 443-877-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NORTH EAST MD
2017-09-13 747-259-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CANOGAPARK CA
2017-09-13 909-408-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ONTARIO CA
2017-09-13 949-316-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 IRVINE CA
2017-09-13 949-316-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 IRVINE CA
2017-09-12 206-887-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BAINBDG IS WA
2017-09-12 470-475-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 470-475-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 470-475-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 470-475-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 470-475-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 470-475-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 470-475-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 470-475-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 470-475-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 470-475-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA NE GA
2017-09-12 510-561-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OKLD FRTVL CA
2017-09-12 510-561-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OKLD FRTVL CA
2017-09-12 510-561-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OKLD FRTVL CA
2017-09-12 510-561-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OKLD FRTVL CA
2017-09-12 510-561-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OKLD FRTVL CA
2017-09-12 515-204-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DES MOINES IA
2017-09-12 515-215-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEVADA IA
2017-09-12 563-239-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DUBUQUE IA
2017-09-12 571-831-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LEESBURG VA
2017-09-12 608-733-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-12 608-733-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-12 608-733-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISON WI
2017-09-12 641-230-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PELLA IA
2017-09-12 641-903-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MASON CITY IA
2017-09-12 650-447-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VIEW CA
2017-09-12 657-364-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WESTMINSTR CA
2017-09-12 661-543-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MCFARLAND CA
2017-09-12 707-305-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VACAVILLE CA
2017-09-12 818-740-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NO HOLLYWD CA
2017-09-12 859-955-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUTLER KY
2017-09-12 859-962-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BOONE KY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 10/04/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.