NumberResearchRecent prefix assignments
0 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, all time — NPA 215
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| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 215-726 | 2XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-727 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-728 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA |
| — | 215-729 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-730 | 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-731 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-732 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-733 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-734 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN39 | PA |
| — | 215-735 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-736 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | MORRISVL | PA |
| — | 215-737 | 1XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA |
| — | 215-738 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN33 | PA |
| — | 215-739 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-740 | none assigned yet which blocks → | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | PHPHSBZN34 | PA |
| — | 215-741 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN43 | PA |
| — | 215-742 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA |
| — | 215-743 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA |
| — | 215-744 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA |
| — | 215-745 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA |
| — | 215-746 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-747 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-748 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-749 | 0XXX2XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-750 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN43 | PA |
| — | 215-751 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-752 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN43 | PA |
| — | 215-753 | 5XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA |
| — | 215-754 | 2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHLDLPHZN3 | PA |
| — | 215-755 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-756 | 1XXX2XXX3XXX4XXX5XXX6XXX7XXX which blocks → | RCN TELECOM SERVICES OF PENNSYLVANIA, INC. | 7615 | PHLDLPHZN2 | PA |
| — | 215-757 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN43 | PA |
| — | 215-758 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → | RCN TELECOM SERVICES OF PENNSYLVANIA, INC. | 7615 | PHPHSBZN34 | PA |
| — | 215-759 | not yet reported which blocks → | SPOK, INC. | 6630 | DOYLESTOWN | PA |
| — | 215-760 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHLDLPHZN1 | PA |
| — | 215-761 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-762 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-763 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-764 | 0XXX2XXX3XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA |
| — | 215-765 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-766 | 6XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PLUMSTEDVL | PA |
| — | 215-767 | 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN33 | PA |
| — | 215-768 | none assigned yet which blocks → | METROPCS, INC. | 5562 | PHLDLPHZN1 | PA |
| — | 215-769 | 9XXX which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-771 | not yet reported which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN33 | PA |
| — | 215-772 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA |
| — | 215-773 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN39 | PA |
| — | 215-774 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PHPHSBZN32 | PA |
| — | 215-775 | not yet reported which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN33 | PA |
| — | 215-776 | 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 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.