NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

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

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, last 30 days
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 27
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 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
— 484-928 0XXX1XXX3XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PHOENIXVL PA
— 484-929 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ALLENTOWN PA
— 484-931 0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J ROYERSFORD PA
— 484-932 0XXX1XXX2XXX3XXX6XXX7XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 ROYERSFORD PA
— 484-933 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E ROYERSFORD PA
— 484-935 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 BETHLEHEM PA
— 484-938 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → PAETEC ITEL, LLC 829J ROYERSFORD PA
— 484-939 not yet reported which blocks → ONVOY, LLC - PA 547E ROYERSFORD PA
— 484-940 0–9 XXXall 10 · 8 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 POTTSTOWN PA
— 484-941 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CTSI, INC. - PA 7513 POTTSTOWN PA
— 484-942 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 POTTSTOWN PA
— 484-944 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 POTTSTOWN PA
— 484-945 2XXX3XXX4XXX · 3 holders which blocks → WINDSTREAM D & E SYSTEMS, INC. - PA 4114 POTTSTOWN PA
— 484-946 not yet reported which blocks → ONVOY, LLC - PA 547E POTTSTOWN PA
— 484-948 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J POTTSTOWN PA
— 484-949 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J POTTSTOWN PA
— 484-950 not yet reported which blocks → PA
— 484-951 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 ALLENTOWN PA
— 484-952 0–9 XXXwhole prefix which blocks → ONVOY, LLC - PA 547E PHPHSBZN28 PA
— 484-953 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN14 PA
— 484-956 2XXX3XXX5XXX7XXX which blocks → PAETEC ITEL, LLC 829J PHPHSBZN29 PA
— 484-958 not yet reported which blocks → PA
— 484-959 not yet reported which blocks → PA
— 484-961 0XXX1XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 COLLEGEVL PA
— 484-962 0XXX1XXX2XXX3XXX5XXX8XXX · 5 holders which blocks → HD CARRIER LLC 321J SCHWENKSVL PA
— 484-964 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J SCHWENKSVL PA
— 484-968 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J SCHWENKSVL PA
— 484-969 not yet reported which blocks → ONVOY, LLC - PA 547E SCHWENKSVL PA
— 484-970 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX which blocks → ONVOY, LLC - PA 547E COLLEGEVL PA
— 484-971 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 COLLEGEVL PA
— 484-972 0–9 XXXall 10 · 4 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 COLLEGEVL PA
— 484-973 0XXX3XXX5XXX6XXX7XXX · 5 holders which blocks → ONVOY, LLC - PA 547E COLLEGEVL PA
— 484-974 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J COLLEGEVL PA
— 484-975 0XXX1XXX2XXX3XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J COLLEGEVL PA
— 484-976 not yet reported which blocks → PA
— 484-977 0XXX1XXX3XXX4XXX8XXX · 3 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 COLLEGEVL PA
— 484-978 not yet reported which blocks → ONVOY, LLC - PA 547E COLLEGEVL PA
— 484-979 0XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 7615 COLLEGEVL PA
— 484-984 3XXX5XXX6XXX7XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J ROYERSFORD PA
— 484-985 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J PUGHTOWN PA
— 484-986 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J PUGHTOWN PA
— 484-989 not yet reported which blocks → ONVOY, LLC - PA 547E PUGHTOWN PA
— 484-990 0–9 XXXwhole prefix which blocks → HD CARRIER LLC 321J BETHLEHEM PA
— 484-991 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CENTER PT PA
— 484-992 1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → ONVOY, LLC - PA 547E CENTER PT PA
— 484-993 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX which blocks → PAETEC ITEL, LLC 829J CENTER PT PA
— 484-994 2XXX4XXX7XXX8XXX · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 CENTER PT PA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.