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 484
PAETEC ITEL, LLC 152
LEVEL 3 COMMUNICATIONS, LLC - PA 129
ONVOY, LLC - PA 78
OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 62
NEW CINGULAR WIRELESS PCS, LLC - DC 53
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
— 484-852 1XXX2XXX3XXX4XXX6XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J HELLERTOWN PA
— 484-853 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → ONVOY, LLC - PA 547E HELLERTOWN PA
— 484-856 1XXX2XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J HELLERTOWN PA
— 484-857 0–9 XXXall 10 · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 KEMPTON PA
— 484-858 0XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F HELLERTOWN PA
— 484-859 not yet reported which blocks → ONVOY, LLC - PA 547E HELLERTOWN PA
— 484-863 9XXX which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 COOPERSBG PA
— 484-865 not yet reported which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 COLLEGEVL PA
— 484-870 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 EXTON PA
— 484-872 0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 EXTON PA
— 484-873 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 EXTON PA
— 484-874 0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 4 holders which blocks → RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 7615 EXTON PA
— 484-875 6XXX8XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 EXTON PA
— 484-876 1XXX7XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J EXTON PA
— 484-879 1XXX4XXX6XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J EXTON PA
— 484-880 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 W CHESTER PA
— 484-881 0XXX1XXX2XXX3XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 W CHESTER PA
— 484-882 not yet reported which blocks → ONVOY, LLC - PA 547E W CHESTER PA
— 484-883 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 W CHESTER PA
— 484-884 not yet reported which blocks → CTSI, INC. - PA 7513 BETHLEHEM PA
— 484-885 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J W CHESTER PA
— 484-886 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J W CHESTER PA
— 484-887 0XXX3XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 W CHESTER PA
— 484-888 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 W CHESTER PA
— 484-889 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 W CHESTER PA
— 484-892 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J BETHLEHEM PA
— 484-893 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J BETHLEHEM PA
— 484-894 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BETHLEHEM PA
— 484-895 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 BETHLEHEM PA
— 484-896 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BETHLEHEM PA
— 484-897 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 LANDENBERG PA
— 484-898 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 BETHLEHEM PA
— 484-899 0XXX1XXX2XXX4XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 UNIONVILLE PA
— 484-900 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - PA 547E UNIONVILLE PA
— 484-901 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PUGHTOWN PA
— 484-902 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 COLLEGEVL PA
— 484-903 0XXX2XXX4XXX5XXX7XXX8XXX which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 EASTON PA
— 484-904 2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J PHPHSBZN31 PA
— 484-905 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J W CHESTER PA
— 484-908 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN13 PA
— 484-910 2XXX3XXX4XXX5XXX6XXX8XXX which blocks → ONVOY, LLC - PA 547E MORTONVL PA
— 484-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 484-913 7XXX which blocks → PAETEC ITEL, LLC 829J PHPHSBZN28 PA
— 484-918 0XXX1XXX2XXX3XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J MORTONVL PA
— 484-920 0XXX3XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H PHOENIXVL PA
— 484-921 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PHOENIXVL PA
— 484-922 not yet reported which blocks → ONVOY, LLC - PA 547E PHOENIXVL PA
— 484-923 0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHOENIXVL PA
— 484-924 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E PHOENIXVL PA
— 484-927 0XXX3XXX4XXX6XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHOENIXVL PA

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.