NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

43 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 571
BANDWIDTH.COM CLEC, LLC - VA 11
ONVOY, LLC - VA 10
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 7
NEW CINGULAR WIRELESS PCS, LLC - DC 6
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6
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
2007-02-26 571-303-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 WSNGTNZN08 VA
2007-02-26 571-490-9XXX 9000–9999Assigned VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
2007-02-22 571-291-8XXX 8000–8999Assigned VERIZON VIRGINIA, INC. 9213 LEESBURG VA
2007-02-20 571-291-7XXX 7000–7999Assigned VERIZON VIRGINIA, INC. 9213 LEESBURG VA
2007-02-15 571-205-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-15 571-205-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-15 571-205-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-15 571-205-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-15 571-382-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN17 VA
2007-02-12 571-484-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 HERNDON VA
2007-02-07 571-205-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2007-02-07 571-205-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2007-02-07 571-205-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2007-02-07 571-205-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2007-01-30 571-313-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J HERNDON VA
2007-01-11 571-480-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN08 VA
2007-01-11 571-484-2XXX 2000–2999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 HERNDON VA
2007-01-08 571-292-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J MANASSAS VA
2007-01-04 571-271-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LEESBURG VA
2007-01-04 571-730-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2007-01-02 571-313-2XXX 2000–2999Assigned VERIZON VIRGINIA, INC. 9213 HERNDON VA
2006-12-21 571-483-7XXX 7000–7999Assigned VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
2006-12-18 571-482-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN08 VA
2006-12-18 571-730-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2006-12-14 571-484-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 HERNDON VA
2006-12-14 571-484-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 HERNDON VA
2006-12-08 571-480-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J WSNGTNZN08 VA
2006-12-06 571-271-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LEESBURG VA
2006-12-04 571-312-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN08 VA
2006-12-04 571-312-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN08 VA
2006-12-04 571-312-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN08 VA
2006-12-04 571-312-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN08 VA
2006-12-04 571-312-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WSNGTNZN08 VA
2006-12-02 571-480-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2006-12-02 571-480-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2006-12-02 571-480-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2006-12-02 571-480-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2006-12-02 571-482-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
2006-11-28 571-258-8XXX 8000–8999Assigned METROPCS, INC. 5562 LEESBURG VA
2006-11-28 571-258-9XXX 9000–9999Assigned METROPCS, INC. 5562 LEESBURG VA
2006-11-20 571-205-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN17 VA
2006-11-20 571-374-0XXX 0000–0999Assigned YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 367E INDENDNTHL VA
2006-11-16 571-366-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN08 VA
2006-11-16 571-366-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN08 VA
2006-11-16 571-366-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN08 VA
2006-11-14 571-379-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MANASSAS VA
2006-11-14 571-379-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MANASSAS VA
2006-11-13 571-248-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 HAYMARKET VA
2006-11-13 571-321-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BRADDOCK VA
2006-11-13 571-321-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BRADDOCK VA

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.