NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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

Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.

Most active assignees, last 30 days
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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-NXXAssigneeOCNRate centerState
757-538 VERIZON VIRGINIA, INC. 9213 SUFFOLK VA
757-539 VERIZON VIRGINIA, INC. 9213 SUFFOLK VA
757-543 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-544 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
757-545 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-546 VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON1 VA
757-547 VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON1 VA
757-548 VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON1 VA
757-549 VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON1 VA
757-552 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-553 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
757-554 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-555 MULTIPLE OCN LISTING MULT DIR ASST VA
757-557 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-558 VERIZON VIRGINIA, INC. 9213 NRFOLKZON3 VA
757-560 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
757-561 METROPCS, INC. 5562 WILLIAMSBG VA
757-562 VERIZON SOUTH, INC. - VA (CONTEL) 0233 FRANKLIN VA
757-563 VERIZON SOUTH, INC. - VA (CONTEL) 0233 NRFOLKZON4 VA
757-564 VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
757-565 VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
757-566 VERIZON VIRGINIA, INC. 9213 TOANO VA
757-567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON3 VA
757-569 VERIZON SOUTH, INC. - VA (CONTEL) 0233 FRANKLIN VA
757-570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NWPTNWSZN3 VA
757-572 METROPCS, INC. 5562 NRFOLKZON1 VA
757-573 METROPCS, INC. 5562 NRFOLKZON1 VA
757-574 METROPCS, INC. 5562 NRFOLKZON1 VA
757-576 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
757-577 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
757-578 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-579 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-580 METROPCS, INC. 5562 NRFOLKZON1 VA
757-581 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
757-582 METROPCS, INC. 5562 NRFOLKZON3 VA
757-583 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-587 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-588 VERIZON VIRGINIA, INC. 9213 NRFOLKZON2 VA
757-591 VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
757-592 METROPCS, INC. 5562 NWPTNWSZN1 VA
757-593 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NWPTNWSZN1 VA
757-594 VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
757-595 VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
757-596 VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
757-597 VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
757-598 BANDWIDTH.COM CLEC, LLC - VA 079F NWPTNWSZN4 VA
757-599 VERIZON VIRGINIA, INC. 9213 NWPTNWSZN1 VA
757-604 VERIZON VIRGINIA, INC. 9213 NWPTNWSZN3 VA
757-605 PAETEC ITEL, LLC 829J NRFOLKZON2 VA
757-606 COMCAST IP PHONE, LLC 318J NRFOLKZON3 VA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.