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
2016-01-11 757-300 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2016-01-11 757-807 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
2015-12-04 757-400 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J NRFOLKZON2 VA
2015-11-25 757-500 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - VA 138E NRFOLKZON2 VA
2015-08-26 757-698 0–9 XXXall 10 · 6 holders which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON1 VA
2015-04-17 757-458 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J NRFOLKZON2 VA
2015-03-04 757-527 0–9 XXXall 10 · 8 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA 7238 NWPTNWSZN3 VA
2015-02-23 757-998 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 NRFOLKZON3 VA
2015-02-12 757-837 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G NRFOLKZON2 VA
2015-02-05 757-205 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA 7238 NRFOLKZON6 VA
2015-02-05 757-212 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA 7238 NRFOLKZON6 VA
2015-02-04 757-364 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F NRFOLKZON2 VA
2015-01-28 757-797 0–9 XXXall 10 · 5 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J NRFOLKZON4 VA
2015-01-07 757-386 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2014-12-11 757-975 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 NWPTNWSZN1 VA
2014-11-06 757-367 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWPTNWSZN3 VA
2014-09-12 757-266 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
2014-09-12 757-776 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2014-09-02 757-378 0–9 XXXall 10 · 8 holders which blocks → COMCAST IP PHONE, LLC 318J WILLIAMSBG VA
2014-08-20 757-920 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 WILLIAMSBG VA
2014-08-15 757-264 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON2 VA
2014-04-09 757-330 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F CAPECHARLS VA
2014-03-07 757-740 0–9 XXXall 10 · 9 holders which blocks → PAETEC ITEL, LLC 829J FRANKLIN VA
2014-01-14 757-230 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2013-11-14 757-384 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F WHALEYVL VA
2012-11-09 757-785 0–9 XXXall 10 · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA 7238 NRFOLKZON2 VA
2012-07-23 757-707 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WILLIAMSBG VA
2012-04-05 757-550 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - VA 8825 NRFOLKZON1 VA
2012-03-20 757-738 0–9 XXXall 10 · 3 holders which blocks → PAETEC ITEL, LLC 829J NRFOLKZON3 VA
2012-03-02 757-862 0–9 XXXwhole prefix which blocks → PAETEC ITEL, LLC 829J NRFOLKZON2 VA
2011-12-09 757-793 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
2011-09-19 757-805 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON2 VA
2011-09-01 757-932 0–9 XXXwhole prefix which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F NRFOLKZON2 VA
2011-07-18 757-750 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NWPTNWSZN1 VA
2011-06-13 757-347 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F CHUCKATUCK VA
2011-02-23 757-985 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2011-02-17 757-913 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NWPTNWSZN1 VA
2011-02-17 757-921 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 NWPTNWSZN1 VA
2011-02-15 757-915 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NWPTNWSZN2 VA
2011-02-09 757-690 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN2 VA
2011-02-09 757-909 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCC TELEPHONY OF THE MID-ATLANTIC, LLC - VA 168G NRFOLKZON6 VA
2010-10-18 757-452 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON2 VA
2010-10-14 757-995 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J NRFOLKZON2 VA
2010-09-29 757-610 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON3 VA
2010-09-29 757-779 0–9 XXXall 10 · 2 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
2010-09-29 757-918 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON2 VA
2010-09-08 757-585 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WILLIAMSBG VA
2010-07-09 757-778 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NWPTNWSZN2 VA
2010-07-07 757-602 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 NWPTNWSZN1 VA
2010-06-15 757-933 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NWPTNWSZN1 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.