NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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, last 30 days — NPA 301
ONVOY, LLC - MD 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
2007-07-19 301-640-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN10 MD
2007-07-17 301-841-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 WSHNGTNZN2 MD
2007-07-03 301-861-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WALDORF MD
2007-06-21 301-760-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 WSHNGTNZN2 MD
2007-06-21 301-841-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 WSHNGTNZN2 MD
2007-06-07 301-300-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-07 301-300-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-07 301-300-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-07 301-300-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-07 301-300-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-07 301-300-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-07 301-300-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-07 301-300-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-07 301-300-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-07 301-828-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSHNGTNZN2 MD
2007-06-04 301-861-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WALDORF MD
2007-05-24 301-690-2XXX 2000–2999Assigned IDT AMERICA, CORP. - MD 228C LEONARDTN MD
2007-05-22 301-241-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F HIGHFIELD MD
2007-05-22 301-371-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F MIDDLETOWN MD
2007-05-22 301-508-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F MYERSVILLE MD
2007-05-22 301-678-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F HANCOCK MD
2007-05-22 301-834-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MD 071F BRUNSWICK MD
2007-05-18 301-640-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN10 MD
2007-05-08 301-978-1XXX 1000–1999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN10 MD
2007-05-03 301-917-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J WSNGTNZN10 MD
2007-04-20 301-605-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN10 MD
2007-04-17 301-841-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WSHNGTNZN2 MD
2007-04-09 301-300-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSHNGTNZN2 MD
2007-04-09 301-789-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSHNGTNZN4 MD
2007-04-09 301-789-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSHNGTNZN4 MD
2007-04-09 301-789-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSHNGTNZN4 MD
2007-04-04 301-861-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WALDORF MD
2007-03-28 301-965-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 WSHNGTNZN6 MD
2007-03-28 301-965-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 WSHNGTNZN6 MD
2007-03-28 301-965-4XXX 4000–4999Assigned VERIZON MARYLAND, INC. 9212 WSHNGTNZN6 MD
2007-03-28 301-965-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MD 6119 WSHNGTNZN6 MD
2007-03-22 301-767-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSHNGTNZN2 MD
2007-03-22 301-767-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 WSHNGTNZN2 MD
2007-03-20 301-349-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J POOLESVL MD
2007-03-12 301-304-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WALKERSVL MD
2007-03-12 301-969-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BRUNSWICK MD
2007-02-26 301-363-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DAMASCS240 MD
2007-02-26 301-508-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MYERSVILLE MD
2007-02-26 301-703-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MOUNT AIRY MD
2007-02-26 301-824-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J SMITHSBURG MD
2007-02-26 301-882-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J NEW MARKET MD
2007-02-23 301-447-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J EMMITSBURG MD
2007-02-23 301-605-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN10 MD
2007-02-23 301-810-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BUCKEYSTN MD
2007-02-22 301-378-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J FREDERICK MD

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.