NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 703
VERIZON VIRGINIA, INC. 374
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 56
VERIZON SOUTH, INC. - VA (CONTEL) 53
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 53
LEVEL 3 COMMUNICATIONS, LLC - VA 48
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2001-11-30 703-668 2XXX which blocks → VERIZON VIRGINIA, INC. 9213 HERNDON VA
2001-11-21 703-999 2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 LEESBURG VA
2001-11-01 703-659 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 MANASSAS VA
2001-05-10 703-654 2XXX4XXX5XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J WSNGTNZN19 VA
2001-05-10 703-770 not yet reported which blocks → PAETEC ITEL, LLC 829J WSNGTNZN17 VA
2001-05-10 703-797 1XXX which blocks → PAETEC ITEL, LLC 829J WSNGTNZN08 VA
2001-05-10 703-871 6XXX7XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J HERNDON VA
2001-04-05 703-231 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN17 VA
2001-03-19 703-649 1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TRIANGLE VA
2001-03-07 703-400 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN17 VA
2001-02-27 703-666 0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J WSNGTNZN08 VA
2001-02-27 703-773 2XXX3XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J HERNDON VA
2001-01-09 703-200 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WSNGTNZN17 VA
2001-01-05 703-600 5XXX6XXX7XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J WSNGTNZN08 VA
— 703-201 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN08 VA
— 703-203 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-204 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-205 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-206 6XXX7XXX8XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-207 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-208 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-209 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-210 not yet reported which blocks → VA
— 703-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 703-212 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-213 5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-214 not yet reported which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F WSNGTNZN08 VA
— 703-215 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-216 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN08 VA
— 703-217 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN08 VA
— 703-218 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-219 8XXX which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-220 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-221 not yet reported which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 TRIANGLE VA
— 703-222 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-223 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-224 5XXX7XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J WSNGTNZN08 VA
— 703-225 6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J WSNGTNZN19 VA
— 703-226 7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J WSNGTNZN17 VA
— 703-227 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-228 9XXX which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-229 2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN08 VA
— 703-230 8XXX which blocks → PAETEC ITEL, LLC 829J HERNDON VA
— 703-233 0XXX which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-234 not yet reported which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 HERNDON VA
— 703-235 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-236 not yet reported which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 WSNGTNZN08 VA
— 703-237 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-238 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-239 3XXX4XXX6XXX7XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 BRADDOCK VA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.