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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 703-615 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WSNGTNZN08 VA
— 703-616 not yet reported which blocks → SPOK, INC. 6630 WSNGTNZN08 VA
— 703-617 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-618 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-619 8XXX which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-620 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-621 not yet reported which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN19 VA
— 703-622 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-623 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-624 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-625 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-626 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-627 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-628 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-629 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WSNGTNZN08 VA
— 703-630 9XXX which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 TRIANGLE VA
— 703-631 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-632 not yet reported which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 TRIANGLE VA
— 703-633 0XXX which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-634 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 TRIANGLE VA
— 703-635 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → COMCAST IP PHONE, LLC 318J WSNGTNZN17 VA
— 703-636 5XXX6XXX7XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN19 VA
— 703-637 6XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 WSNGTNZN17 VA
— 703-638 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → COMCAST IP PHONE, LLC 318J WSNGTNZN19 VA
— 703-639 0XXX4XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 TELECOM OF VIRGINIA, LLC - VA 7769 WSNGTNZN17 VA
— 703-640 3XXX4XXX8XXX · 2 holders which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 TRIANGLE VA
— 703-641 3XXX which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-642 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-643 4XXX9XXX which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 LORTONMTRO VA
— 703-644 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-645 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-646 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LORTON VA
— 703-647 0XXX3XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J WSNGTNZN08 VA
— 703-648 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-650 0XXX3XXX5XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 TELECOM OF VIRGINIA, LLC - VA 7769 WSNGTNZN08 VA
— 703-651 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DULLES VA
— 703-652 not yet reported which blocks → PAETEC ITEL, LLC 829J WSNGTNZN19 VA
— 703-653 0XXX4XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN19 VA
— 703-655 none assigned yet which blocks → METROPCS, INC. 5562 WSNGTNZN17 VA
— 703-656 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → STARPOWER COMMUNICATIONS, LLC - VA 8830 MANASSAS VA
— 703-658 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN17 VA
— 703-660 4XXX5XXX7XXX · 2 holders which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-661 9XXX which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 DULLES VA
— 703-662 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - DC 7529 DULLES VA
— 703-663 0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J WSNGTNZN17 VA
— 703-664 0XXX1XXX9XXX · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 WSNGTNZN08 VA
— 703-665 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 DULLES VA
— 703-667 0XXX6XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J WSNGTNZN19 VA
— 703-669 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 LEESBURG VA
— 703-670 not yet reported which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 DALE CITY 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.