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 757
VERIZON VIRGINIA, INC. 220
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 105
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 80
COMCAST IP PHONE, LLC 73
PAETEC ITEL, LLC 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
2001-09-15 757-816 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2001-09-13 757-660 none assigned yet which blocks → METROPCS, INC. 5562 NWPTNWSZN1 VA
2001-08-21 757-746 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NWPTNWSZN3 VA
2001-07-25 757-319 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2001-07-25 757-320 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NWPTNWSZN1 VA
2001-06-08 757-739 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2001-05-24 757-655 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 PARKSLEY VA
2001-05-24 757-656 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 BELLEHAVEN VA
2001-05-24 757-742 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 COURTLAND VA
2001-05-24 757-745 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 CRITTENDEN VA
2001-05-17 757-469 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2001-05-16 757-693 3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 BELLEHAVEN VA
2001-05-16 757-694 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TEMPERNCVL VA
2001-05-16 757-695 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CAPECHARLS VA
2001-05-14 757-737 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
2001-04-10 757-575 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
2001-04-10 757-735 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
2001-04-05 757-589 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
2001-04-05 757-692 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2001-03-16 757-946 4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J NWPTNWSZN4 VA
2001-03-07 757-556 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 COURTLAND VA
2001-02-08 757-685 0XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2001-01-25 757-200 not yet reported which blocks → PAETEC ITEL, LLC 829J NRFOLKZON2 VA
2001-01-18 757-659 1XXX6XXX8XXX9XXX · 3 holders which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN4 VA
2001-01-09 757-679 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2001-01-05 757-559 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
— 757-203 0–9 XXXwhole prefix which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON3 VA
— 757-204 1XXX2XXX3XXX5XXX6XXX7XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON6 VA
— 757-206 1XXX2XXX · 2 holders which blocks → METROPCS, INC. 5562 WILLIAMSBG VA
— 757-207 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → METROPCS, INC. 5562 WILLIAMSBG VA
— 757-208 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 WILLIAMSBG VA
— 757-209 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 WILLIAMSBG VA
— 757-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX VA
— 757-213 not yet reported which blocks → PAETEC ITEL, LLC 829J NRFOLKZON2 VA
— 757-215 4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J NRFOLKZON3 VA
— 757-216 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON2 VA
— 757-217 5XXX6XXX7XXX8XXX which blocks → PAETEC ITEL, LLC 829J NRFOLKZON2 VA
— 757-218 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NWPTNWSZN1 VA
— 757-219 2XXX which blocks → VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON4 VA
— 757-220 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
— 757-221 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
— 757-222 not yet reported which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON2 VA
— 757-223 7XXX9XXX which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN1 VA
— 757-224 2XXX3XXX5XXX6XXX8XXX which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN2 VA
— 757-225 not yet reported which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN2 VA
— 757-226 0XXX1XXX8XXX9XXX which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON2 VA
— 757-227 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON2 VA
— 757-228 0XXX2XXX4XXX6XXX8XXX9XXX which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON2 VA
— 757-229 not yet reported which blocks → VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
— 757-231 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J NWPTNWSZN4 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.