NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 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)

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
2019-05-08 757-904 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2019-04-11 757-703 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - VA 138E WILLIAMSBG VA
2019-03-27 757-551 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - VA 138E BELLEHAVEN VA
2019-02-28 757-916 0–9 XXXall 10 · 4 holders which blocks → EXIANT COMMUNICATIONS LLC 114J NRFOLKZON2 VA
2018-12-13 757-901 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NRFOLKZON2 VA
2018-11-15 757-970 0–9 XXXwhole prefix which blocks → VONAGE AMERICA LLC 197D NRFOLKZON2 VA
2018-11-06 757-808 0–9 XXXall 10 · 3 holders which blocks → VERIZON VIRGINIA, INC. 9213 WILLIAMSBG VA
2018-08-01 757-571 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K FRANKLIN VA
2018-07-19 757-906 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F TOANO VA
2018-06-26 757-210 0–9 XXXall 10 · 4 holders which blocks → CORETEL VIRGINIA, LLC - VA 5832 CAPECHARLS VA
2018-06-26 757-260 0–9 XXXall 10 · 6 holders which blocks → CORETEL VIRGINIA, LLC - VA 5832 CHUCKATUCK VA
2018-06-26 757-429 0–9 XXXwhole prefix which blocks → CORETEL VIRGINIA, LLC - VA 5832 TEMPERNCVL VA
2018-06-26 757-526 0–9 XXXall 10 · 2 holders which blocks → CORETEL VIRGINIA, LLC - VA 5832 HOLLAND VA
2018-06-26 757-530 0–9 XXXall 10 · 5 holders which blocks → CORETEL VIRGINIA, LLC - VA 5832 NRFOLKZON3 VA
2018-06-26 757-586 0–9 XXXall 10 · 4 holders which blocks → CORETEL VIRGINIA, LLC - VA 5832 NWPTNWSZN1 VA
2018-06-26 757-590 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → CORETEL VIRGINIA, LLC - VA 5832 TANGIER VA
2018-06-26 757-601 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CORETEL VIRGINIA, LLC - VA 5832 CLAREMONT VA
2018-06-26 757-684 0–9 XXXall 10 · 4 holders which blocks → CORETEL VIRGINIA, LLC - VA 5832 WAKEFIELD VA
2018-06-26 757-760 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CORETEL VIRGINIA, LLC - VA 5832 DENDRON VA
2018-06-20 757-704 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H NRFOLKZON1 VA
2018-05-18 757-767 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - VA 138E EASTVILLE VA
2018-05-10 757-978 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN2 VA
2018-05-09 757-973 0XXX8XXX9XXX · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F CHINCOTEGU VA
2018-05-08 757-964 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN2 VA
2018-05-07 757-937 0–9 XXXall 10 · 3 holders which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON2 VA
2018-03-05 757-956 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 NRFOLKZON3 VA
2018-03-02 757-699 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - VA 138E WHALEYVL VA
2017-12-20 757-991 0–9 XXXall 10 · 5 holders which blocks → VONAGE AMERICA LLC 197D NRFOLKZON1 VA
2017-10-31 757-524 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - VA 138E NRFOLKZON2 VA
2017-10-12 757-841 0–9 XXXall 10 · 4 holders which blocks → AIRUS, INC. - VA 726H NRFOLKZON1 VA
2017-10-04 757-600 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - VA 138E NRFOLKZON2 VA
2017-09-21 757-960 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J SMITHFIELD VA
2017-08-25 757-290 0–9 XXXall 10 · 6 holders which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON1 VA
2017-05-19 757-900 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H NRFOLKZON1 VA
2017-05-04 757-674 0–9 XXXwhole prefix which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN1 VA
2017-05-04 757-730 0–9 XXXwhole prefix which blocks → COMCAST IP PHONE, LLC 318J NRFOLKZON2 VA
2017-02-24 757-800 0–9 XXXall 10 · 5 holders which blocks → TELNYX LLC 073H NRFOLKZON3 VA
2017-01-12 757-505 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F ONANCOCK VA
2017-01-12 757-568 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F COURTLAND VA
2017-01-12 757-829 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F PARKSLEY VA
2016-12-05 757-756 0–9 XXXall 10 · 5 holders which blocks → TELNYX LLC 073H NRFOLKZON2 VA
2016-12-02 757-782 0–9 XXXall 10 · 6 holders which blocks → COMCAST IP PHONE, LLC 318J NWPTNWSZN1 VA
2016-11-02 757-614 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 NRFOLKZON1 VA
2016-10-19 757-902 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NWPTNWSZN2 VA
2016-09-14 757-381 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - VA 4644 NRFOLKZON3 VA
2016-09-13 757-949 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 NRFOLKZON3 VA
2016-09-08 757-922 0–9 XXXall 10 · 8 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K SUFFOLK VA
2016-07-22 757-794 0–9 XXXall 10 · 7 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F TOANO VA
2016-07-11 757-790 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 WILLIAMSBG VA
2016-02-29 757-520 0–9 XXXwhole prefix which blocks → ONVOY, LLC - VA 138E NRFOLKZON1 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.