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 215
VERIZON PENNSYLVANIA, INC. 424
NEW CINGULAR WIRELESS PCS, LLC - DC 74
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 48
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 41
SPOK, INC. 36
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
— 215-672 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHPHSBZN39 PA
— 215-673 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN4 PA
— 215-674 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHPHSBZN39 PA
— 215-675 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHPHSBZN39 PA
— 215-676 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN4 PA
— 215-677 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN4 PA
— 215-679 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PENNSBURG PA
— 215-680 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN2 PA
— 215-681 none assigned yet which blocks → METROPCS, INC. 5562 PHLDLPHZN1 PA
— 215-682 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHPHSBZN39 PA
— 215-683 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN1 PA
— 215-684 9XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN1 PA
— 215-685 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN1 PA
— 215-686 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN1 PA
— 215-687 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHLDLPHZN1 PA
— 215-688 4XXX5XXX · 2 holders which blocks → AT&T - LOCAL 7421 PHPHSBZN41 PA
— 215-689 5XXX6XXX8XXX9XXX · 2 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHLDLPHZN2 PA
— 215-690 1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → PAETEC ITEL, LLC 829J PHPHSBZN34 PA
— 215-691 not yet reported which blocks → SPOK, INC. 6630 PHLDLPHZN1 PA
— 215-692 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 LANSDALE PA
— 215-693 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7309 NEW HOPE PA
— 215-694 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN2 PA
— 215-695 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN4 PA
— 215-696 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN33 PA
— 215-697 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN4 PA
— 215-698 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN4 PA
— 215-699 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 NORTHWALES PA
— 215-700 not yet reported which blocks → PA
— 215-701 not yet reported which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 PHLDLPHZN1 PA
— 215-702 6XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHPHSBZN43 PA
— 215-703 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 SOUDERTON PA
— 215-704 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PHLDLPHZN2 PA
— 215-705 not yet reported which blocks → SPOK, INC. 6630 PHLDLPHZN4 PA
— 215-706 8XXX9XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHPHSBZN38 PA
— 215-707 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN1 PA
— 215-708 7XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN4 PA
— 215-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 215-712 1XXX3XXX4XXX6XXX8XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 LINELXNGTN PA
— 215-713 4XXX5XXX6XXX7XXX8XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN3 PA
— 215-715 not yet reported which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 PHLDLPHZN1 PA
— 215-716 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 8 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LINELXNGTN PA
— 215-717 7XXX8XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J PHLDLPHZN1 PA
— 215-718 0XXX1XXX2XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN33 PA
— 215-719 not yet reported which blocks → SPOK, INC. 6630 PHLDLPHZN1 PA
— 215-720 1XXX2XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PHPHSBZN33 PA
— 215-721 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 SOUDERTON PA
— 215-722 9XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN4 PA
— 215-723 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 SOUDERTON PA
— 215-724 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN2 PA
— 215-725 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 PHLDLPHZN4 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.