NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 — NPA 267
ONVOY, LLC - PA 3
NEW CINGULAR WIRELESS PCS, LLC - DC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 1
AHOI LLC 1
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
2018-07-16 267-764-0XXX 0000–0999Assigned ADVANCED TELECOM SOLUTIONS, LLC 181J PHLDLPHZN1 PA
2018-07-13 267-826-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN40 PA
2018-07-12 267-281-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 SOUDERTON PA
2018-07-12 267-827-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 LANSDALE PA
2018-07-09 267-541-5XXX 5000–5999Assigned METROPCS, INC. 5562 PHLDLPHZN1 PA
2018-07-09 267-768-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHLDLPHZN1 PA
2018-07-09 267-780-4XXX 4000–4999Assigned METROPCS, INC. 5562 PHLDLPHZN1 PA
2018-07-09 267-780-6XXX 6000–6999Assigned METROPCS, INC. 5562 PHLDLPHZN1 PA
2018-07-09 267-826-3XXX 3000–3999Assigned METROPCS, INC. 5562 PHPHSBZN40 PA
2018-07-09 267-826-5XXX 5000–5999Assigned METROPCS, INC. 5562 PHPHSBZN40 PA
2018-07-09 267-826-6XXX 6000–6999Assigned METROPCS, INC. 5562 PHPHSBZN40 PA
2018-07-09 267-826-7XXX 7000–7999Assigned METROPCS, INC. 5562 PHPHSBZN40 PA
2018-07-09 267-826-8XXX 8000–8999Assigned METROPCS, INC. 5562 PHPHSBZN40 PA
2018-06-28 267-636-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PHPHSBZN34 PA
2018-06-15 267-541-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2018-06-15 267-541-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN1 PA
2018-06-15 267-826-0XXX 0000–0999Assigned METROPCS, INC. 5562 PHPHSBZN40 PA
2018-06-06 267-621-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 DOYLESTOWN PA
2018-06-06 267-842-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-06-06 267-842-1XXX 1000–1999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-06-06 267-842-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DOYLESTOWN PA
2018-06-05 267-691-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 PHLDLPHZN4 PA
2018-05-22 267-673-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHPHSBZN39 PA
2018-05-11 267-360-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PLUMSTEDVL PA
2018-05-11 267-360-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PLUMSTEDVL PA
2018-05-11 267-362-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PLUMSTEDVL PA
2018-05-11 267-450-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - PA 002F PERKASIE PA
2018-05-11 267-470-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN33 PA
2018-05-11 267-470-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN33 PA
2018-05-11 267-470-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN33 PA
2018-05-11 267-485-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN45 PA
2018-05-11 267-485-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN45 PA
2018-05-11 267-489-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN45 PA
2018-05-11 267-494-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 WYCOMBE PA
2018-05-11 267-494-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 WYCOMBE PA
2018-05-11 267-522-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN41 PA
2018-05-11 267-523-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN41 PA
2018-05-11 267-552-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-05-11 267-552-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-05-11 267-553-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN42 PA
2018-05-11 267-578-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DUBLIN PA
2018-05-11 267-578-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 DUBLIN PA
2018-05-11 267-659-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 NORTHWALES PA
2018-05-11 267-669-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHLDLPHZN4 PA
2018-05-11 267-669-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHLDLPHZN4 PA
2018-05-11 267-669-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHLDLPHZN4 PA
2018-05-11 267-720-0XXX 0000–0999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN44 PA
2018-05-11 267-720-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN44 PA
2018-05-11 267-743-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 NEW HOPE PA
2018-05-11 267-743-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 NEW HOPE PA

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.