NumberResearchRecent prefix assignments
355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 724-647 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | BEAVER FLS | PA |
| — | 724-648 | 0XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | CALIFORNIA | PA |
| — | 724-649 | 0XXX2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks → | ONVOY SPECTRUM, LLC | 624H | BURGETTSTN | PA |
| — | 724-651 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NEW CASTLE | PA |
| — | 724-652 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEW CASTLE | PA |
| — | 724-653 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | MONESSEN | PA |
| — | 724-654 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEW CASTLE | PA |
| — | 724-656 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEW CASTLE | PA |
| — | 724-657 | none assigned yet which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEW CASTLE | PA |
| — | 724-658 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEW CASTLE | PA |
| — | 724-659 | 1XXX2XXX6XXX7XXX8XXX · 4 holders which blocks → | BRIGHTSPEED OF PENNSYLVANIA, LLC | 0209 | FOXBURG | PA |
| — | 724-662 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MERCER | PA |
| — | 724-663 | 1XXX2XXX6XXX8XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | CLAYSVILLE | PA |
| — | 724-664 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | KITTANNING | PA |
| — | 724-667 | 2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | BESSEMER | PA |
| — | 724-671 | 0XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | TARENTUM | PA |
| — | 724-674 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | NEW CASTLE | PA |
| — | 724-675 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | BLAIRSVL | PA |
| — | 724-676 | 1XXX2XXX3XXX6XXX7XXX8XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | BOLIVAR | PA |
| — | 724-677 | 1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | SMOCK | PA |
| — | 724-679 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BUTLER | PA |
| — | 724-680 | 0–9 XXXall 10 · 7 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | BEAVER FLS | PA |
| — | 724-682 | 0XXX2XXX3XXX8XXX9XXX · 4 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MIDLAND | PA |
| — | 724-684 | 0XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MONESSEN | PA |
| — | 724-685 | 0–9 XXXall 10 · 6 holders which blocks → | T-MOBILE USA, INC. | 6529 | SHARON | PA |
| — | 724-686 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | LATROBE | PA |
| — | 724-689 | 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | GREENSBURG | PA |
| — | 724-693 | 1XXX3XXX4XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | OAKDALE | PA |
| — | 724-694 | 3XXX4XXX7XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | DERRY | PA |
| — | 724-695 | 6XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | IMPERIAL | PA |
| — | 724-696 | none assigned yet which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MTPLEASANT | PA |
| — | 724-697 | 2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | VERIZON NORTH, INC. - PA | 0169 | AVONMORE | PA |
| — | 724-699 | not yet reported which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SHARON | PA |
| — | 724-700 | not yet reported which blocks → | PA | |||
| — | 724-701 | 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → | ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS | 2522 | BURGETTSTN | PA |
| — | 724-702 | 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → | COMCAST IP PHONE, LLC | 318J | SALTSBURG | PA |
| — | 724-703 | 0XXX1XXX2XXX3XXX5XXX6XXX7XXX · 5 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OAKDALE | PA |
| — | 724-704 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → | PAETEC ITEL, LLC | 829J | SHARON | PA |
| — | 724-705 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | WASHINGTON | PA |
| — | 724-709 | 0XXX1XXX3XXX4XXX5XXX7XXX9XXX · 3 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | ROCHESTER | PA |
| — | 724-710 | 0–9 XXXall 10 · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNESBURG | PA |
| — | 724-711 | not yet reported which blocks → | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | PA |
| — | 724-712 | 2XXX8XXX · 2 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | BUTLER | PA |
| — | 724-713 | 7XXX8XXX which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | CRIDERSCOR | PA |
| — | 724-714 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | NEW CASTLE | PA |
| — | 724-715 | 2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | SPRINGDALE | PA |
| — | 724-717 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | FIDIUM ENTERPRISE SERVICES, LLC | 8597 | INDIANA | PA |
| — | 724-718 | 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7315 | SHARPSVL | PA |
| — | 724-722 | not yet reported which blocks → | YUKON-WALTZ TEL. CO. | 0215 | YUKON | PA |
| — | 724-723 | 0XXX1XXX7XXX8XXX9XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | INDIANA | 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.