NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

355 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, last 30 days
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
— 724-941 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 MCMURRAY PA
— 724-942 8XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 MCMURRAY PA
— 724-943 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 GREENSBORO PA
— 724-945 not yet reported which blocks → CONSOLIDATED COMMUNICATIONS OF PENNSYLVANIA COMP 0185 SCENERY HL PA
— 724-946 0XXX1XXX4XXX5XXX · 4 holders which blocks → VERIZON NORTH, INC. - PA 0169 NEWWLMNGTN PA
— 724-947 1XXX6XXX8XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 BURGETTSTN PA
— 724-948 0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → VERIZON NORTH, INC. - PA (QUAKER ST) 0201 TAYLORSTN PA
— 724-949 0XXX1XXX2XXX3XXX6XXX8XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MCMURRAY PA
— 724-950 not yet reported which blocks → PA
— 724-951 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 LIGONIER PA
— 724-954 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KITTANNING PA
— 724-957 2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MCMURRAY PA
— 724-958 not yet reported which blocks → PA
— 724-959 not yet reported which blocks → PA
— 724-960 0XXX3XXX4XXX8XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 MCMURRAY PA
— 724-962 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 SHARPSVL PA
— 724-964 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks → VERIZON NORTH, INC. - PA 0169 NEWBEDFORD PA
— 724-965 0XXX3XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 NEW CASTLE PA
— 724-966 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 CARMICHALS PA
— 724-967 0XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GROVE CITY PA
— 724-969 1XXX2XXX3XXX7XXX9XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 MCMURRAY PA
— 724-971 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 NEW CASTLE PA
— 724-972 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 GREENSBURG PA
— 724-973 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 SMOCK PA
— 724-975 not yet reported which blocks → PA
— 724-976 not yet reported which blocks → PA
— 724-978 1XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PTGSBNZN23 PA
— 724-979 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 SHARON PA
— 724-981 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 SHARON PA
— 724-982 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 SHARON PA
— 724-983 9XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 SHARON PA
— 724-987 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 ROCHESTER PA
— 724-993 0XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS 2522 WASHINGTON PA
— 724-995 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 LIGONIER PA
— 724-998 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WAYNESBURG PA
— 725-201 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J LAS VEGAS NV
— 725-202 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NV 029F LAS VEGAS NV
— 725-204 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J LAS VEGAS NV
— 725-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NV
— 725-226 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NV 029F LAUGHLIN NV
— 725-235 0–9 XXXall 10 · 3 holders which blocks → COMCAST IP PHONE, LLC 318J LAS VEGAS NV
— 725-251 0–9 XXXall 10 · 3 holders which blocks → COMCAST IP PHONE, LLC 318J LAS VEGAS NV
— 725-266 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J LAS VEGAS NV
— 725-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NV
— 725-355 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV 6458 LAS VEGAS NV
— 725-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NV
— 725-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NV
— 725-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST NV
— 725-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NV
— 725-700 not yet reported which blocks → NV

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.