NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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, all time — NPA 760
COMCAST PHONE OF CALIFORNIA, LLC 68
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2017-09-29 760-870-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L RAMONA CA
2017-09-28 760-704-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ENCINITAS CA
2017-09-28 760-847-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD PDTN CA
2017-09-13 760-557-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ENCINITAS CA
2011-11-21 760-237-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD PDTN CA
2011-10-21 760-444-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD CRLS CA
2011-02-16 760-547-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2010-09-23 760-317-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2010-09-08 760-893-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD CRLS CA
2010-07-29 760-798-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SAN MARCOS CA
2010-06-09 760-330-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2008-09-30 760-690-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2008-04-28 760-305-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2008-04-28 760-509-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2008-04-16 760-829-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD PDTN CA
2008-03-14 760-658-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2008-01-24 760-201-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2007-12-11 760-637-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2007-11-12 760-317-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2007-08-21 760-452-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ENCINITAS CA
2007-08-20 760-566-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SAN MARCOS CA
2007-07-17 760-842-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2007-07-10 760-453-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2007-06-21 760-440-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L RAMONA CA
2007-06-01 760-692-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD CRLS CA
2007-05-10 760-317-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2006-11-07 760-547-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2006-09-27 760-444-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD CRLS CA
2006-09-27 760-798-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SAN MARCOS CA
2006-09-27 760-842-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2006-09-18 760-294-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2006-08-16 760-237-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD PDTN CA
2006-05-04 760-444-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD CRLS CA
2006-05-04 760-444-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD CRLS CA
2006-03-28 760-730-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2006-03-28 760-755-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2006-03-07 760-695-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L FALLBROOK CA
2005-09-28 760-842-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2005-09-20 760-529-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2005-07-21 760-230-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ENCINITAS CA
2005-07-21 760-294-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2005-07-21 760-798-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SAN MARCOS CA
2005-06-16 760-305-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2005-05-26 760-842-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA
2005-05-24 760-529-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2005-04-20 760-290-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SAN MARCOS CA
2005-04-20 760-440-0XXX 0000–0999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L RAMONA CA
2005-02-04 760-294-0XXX 0000–0999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L ESCONDIDO CA
2004-11-02 760-529-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L OCSD OCSD CA
2004-09-30 760-216-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VISTA CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.