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 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
— 484-768 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN11 PA
— 484-769 0XXX which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 READING PA
— 484-770 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J MENDENHALL PA
— 484-771 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MENDENHALL PA
— 484-774 0–9 XXXall 10 · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 PHPHSBZN30 PA
— 484-775 0XXX3XXX7XXX8XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H MENDENHALL PA
— 484-776 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 MENDENHALL PA
— 484-778 2XXX3XXX4XXX6XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MENDENHALL PA
— 484-779 not yet reported which blocks → ONVOY, LLC - PA 547E MENDENHALL PA
— 484-782 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 COATESVL PA
— 484-784 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - PA 547E COATESVL PA
— 484-786 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → PAETEC ITEL, LLC 829J COATESVL PA
— 484-789 not yet reported which blocks → ONVOY, LLC - PA 547E COATESVL PA
— 484-791 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 ROYERSFORD PA
— 484-793 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FLEETWOOD PA
— 484-796 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J HONEYBROOK PA
— 484-798 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J HONEYBROOK PA
— 484-799 not yet reported which blocks → ONVOY, LLC - PA 547E HONEYBROOK PA
— 484-800 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - PA 547E PHPHSBZN10 PA
— 484-801 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN30 PA
— 484-802 not yet reported which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHPHSBZN26 PA
— 484-804 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN30 PA
— 484-806 not yet reported which blocks → ONVOY, LLC - PA 547E PHPHSBZN30 PA
— 484-808 1XXX2XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN30 PA
— 484-810 0XXX1XXX3XXX4XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 SPRINGTOWN PA
— 484-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 484-812 0XXX1XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J SPRINGTOWN PA
— 484-813 4XXX7XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J UNIONVILLE PA
— 484-814 0XXX1XXX2XXX4XXX · 2 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 SPRINGTOWN PA
— 484-817 none assigned yet which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 SPRINGTOWN PA
— 484-819 0XXX1XXX4XXX7XXX8XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J SPRINGTOWN PA
— 484-821 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J BETHLEHEM PA
— 484-823 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 AVONDALE PA
— 484-824 0–9 XXXall 10 · 3 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 READING PA
— 484-829 2XXX3XXX4XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 7434 PHPHSBZN24 PA
— 484-831 4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN29 PA
— 484-832 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHPHSBZN10 PA
— 484-833 9XXX which blocks → SERVICE ELECTRIC TELEPHONE COMPANY, LLC 8320 FERNDALE PA
— 484-834 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 CATASAUQUA PA
— 484-839 0XXX1XXX3XXX4XXX5XXX6XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 KUTZTOWN PA
— 484-840 3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHPHSBZN10 PA
— 484-841 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN10 PA
— 484-842 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN10 PA
— 484-843 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN10 PA
— 484-844 0XXX1XXX2XXX3XXX4XXX5XXX7XXX9XXX which blocks → RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 7615 PHPHSBZN10 PA
— 484-845 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN10 PA
— 484-846 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHPHSBZN10 PA
— 484-848 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN10 PA
— 484-849 0–9 XXXall 10 · 6 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 PHPHSBZN10 PA
— 484-851 0XXX1XXX2XXX7XXX9XXX · 4 holders which blocks → RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 7615 HELLERTOWN PA

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.