NumberResearch Membership · Data 10/01/2026

Recent thousands-block assignments

838 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 10/01/2026

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 306
NEW CINGULAR WIRELESS PCS, LLC - IL 261
NEW CINGULAR WIRELESS PCS, LLC - GA 138
NEW CINGULAR WIRELESS PCS, LLC 133
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
2014-04-01 415-770-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC MT-EV CA
2014-04-01 415-770-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC MT-EV CA
2014-04-01 415-770-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC MT-EV CA
2014-04-01 415-770-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC MT-EV CA
2014-04-01 415-770-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC MT-EV CA
2014-04-01 419-767-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KENTON OH
2014-04-01 424-236-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HAWTHORNE CA
2014-04-01 424-320-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 W ANGELES CA
2014-04-01 442-227-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALMDESERT CA
2014-04-01 480-376-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-04-01 480-376-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-04-01 480-376-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-04-01 480-376-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-04-01 530-353-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OROVILLE CA
2014-04-01 530-523-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HOMEWOOD CA
2014-04-01 530-746-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DAVIS CA
2014-04-01 530-762-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PARADISE CA
2014-04-01 559-223-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHOWCHILLA CA
2014-04-01 559-536-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MADERA CA
2014-04-01 559-567-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KERMAN CA
2014-04-01 657-378-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FULLERTON CA
2014-04-01 657-500-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FULLERTON CA
2014-04-01 669-224-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUNNYVALE CA
2014-04-01 682-205-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANBURY TX
2014-04-01 714-698-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HUNTITNBCH CA
2014-04-01 716-266-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LOCKPORT NY
2014-04-01 760-846-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ENCINITAS CA
2014-04-01 805-387-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SIMIVALLEY CA
2014-04-01 830-499-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ASHERTON TX
2014-04-01 831-582-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MONTEREY CA
2014-04-01 845-366-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 HYDE PARK NY
2014-04-01 858-465-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DEL MAR CA
2014-04-01 858-924-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RNCHOBRNDO CA
2014-04-01 909-325-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHINO CA
2014-04-01 909-344-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CLAREMONT CA
2014-04-01 909-378-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DIAMONDBAR CA
2014-04-01 909-441-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2014-04-01 909-441-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2014-04-01 909-441-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FONTANA CA
2014-04-01 949-521-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SADLBK VLY CA
2014-04-01 979-264-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANGLETON TX
2014-04-01 979-264-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANGLETON TX
2014-03-31 419-834-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUCYRUS OH
2014-03-31 440-206-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTINBURG OH
2014-03-31 440-218-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TRUMBULL OH
2014-03-31 440-858-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DORSET OH
2014-03-31 510-935-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HAYWARD CA
2014-03-31 559-556-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TULARE CA
2014-03-31 562-247-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH CA
2014-03-31 562-273-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHITTIER CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 10/01/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.