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 412
VERIZON PENNSYLVANIA, INC. 249
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 86
NEW CINGULAR WIRELESS PCS, LLC - IL 60
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 57
AERIAL COMMUNICATIONS, INC. 49
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
— 412-665 7XXX9XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON8 PA
— 412-666 7XXX9XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN22 PA
— 412-667 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-669 not yet reported which blocks → SPOK, INC. 6630 PTTSBGZON6 PA
— 412-670 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 PTTSBGZON1 PA
— 412-671 none assigned yet which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVER FLS PA
— 412-672 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN10 PA
— 412-673 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN10 PA
— 412-675 1XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN10 PA
— 412-678 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTGSBNZN10 PA
— 412-680 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
— 412-681 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-682 8XXX9XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-683 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-684 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FIDIUM ENTERPRISE SERVICES, LLC 8597 PTGSBNZN18 PA
— 412-685 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PTTSBGZON5 PA
— 412-686 not yet reported which blocks → SPOK, INC. 6630 PTGSBNZN14 PA
— 412-687 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-688 6XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-690 0XXX1XXX5XXX7XXX9XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-691 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 UNIONTOWN PA
— 412-692 0XXX1XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-695 2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - PA 547E PTGSBNZN17 PA
— 412-696 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FIDIUM ENTERPRISE SERVICES, LLC 8597 PTTSBGZON3 PA
— 412-697 not yet reported which blocks → PAETEC ITEL, LLC 829J PTTSBGZON1 PA
— 412-698 not yet reported which blocks → SPOK, INC. 6630 PTTSBGZON1 PA
— 412-700 not yet reported which blocks → PA
— 412-701 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PTGSBNZN21 PA
— 412-702 2XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PTGSBNZN22 PA
— 412-704 2XXX3XXX4XXX6XXX8XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTGSBNZN21 PA
— 412-705 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PTTSBGZON1 PA
— 412-706 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS 2522 PTGSBNZN14 PA
— 412-708 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 PTTSBGZON1 PA
— 412-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 412-712 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → FIDIUM ENTERPRISE SERVICES, LLC 8597 PTGSBNZN21 PA
— 412-714 1XXX2XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTGSBNZN11 PA
— 412-715 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
— 412-716 2XXX which blocks → METROPCS, INC. 5562 PTGSBNZN15 PA
— 412-717 0XXX1XXX2XXX3XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTGSBNZN22 PA
— 412-718 not yet reported which blocks → SPOK, INC. 6630 PTTSBGZON2 PA
— 412-719 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
— 412-720 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
— 412-721 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PTTSBGZON1 PA
— 412-722 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → FIDIUM ENTERPRISE SERVICES, LLC 8597 PTGSBNZN14 PA
— 412-723 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PTTSBGZON4 PA
— 412-724 not yet reported which blocks → PA
— 412-725 0XXX2XXX9XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 PTTSBGZON5 PA
— 412-726 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 PTTSBGZON1 PA
— 412-727 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTTSBGZON4 PA
— 412-728 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 PTTSBGZON1 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.