NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 215-227 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-228 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-229 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-230 | VERIZON PENNSYLVANIA, INC. | 9208 | DOYLESTOWN | PA | |
| 215-231 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-232 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-233 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN32 | PA | |
| 215-234 | VERIZON PENNSYLVANIA, INC. | 9208 | GREEN LANE | PA | |
| 215-235 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-236 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-238 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-239 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN1 | PA | |
| 215-241 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-242 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA | |
| 215-243 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA | |
| 215-244 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN41 | PA | |
| 215-245 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN41 | PA | |
| 215-246 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-247 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA | |
| 215-248 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA | |
| 215-249 | VERIZON PENNSYLVANIA, INC. | 9208 | DUBLIN | PA | |
| 215-252 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHLDLPHZN2 | PA | |
| 215-254 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHLDLPHZN3 | PA | |
| 215-255 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-256 | VERIZON PENNSYLVANIA, INC. | 9208 | HARLEYSVL | PA | |
| 215-257 | VERIZON PENNSYLVANIA, INC. | 9208 | PERKASIE | PA | |
| 215-258 | VERIZON PENNSYLVANIA, INC. | 9208 | PERKASIE | PA | |
| 215-259 | PAETEC ITEL, LLC | 829J | PHPHSBZN39 | PA | |
| 215-260 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN33 | PA | |
| 215-261 | RCN TELECOM SERVICES OF PENNSYLVANIA, INC. | 7615 | PHLDLPHZN3 | PA | |
| 215-262 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | DOYLESTOWN | PA | |
| 215-263 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-264 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN33 | PA | |
| 215-265 | SPOK, INC. | 6630 | PHLDLPHZN1 | PA | |
| 215-266 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHLDLPHZN2 | PA | |
| 215-268 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHLDLPHZN4 | PA | |
| 215-269 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN44 | PA | |
| 215-270 | SPOK, INC. | 6630 | PHLDLPHZN4 | PA | |
| 215-271 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-273 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHPHSBZN32 | PA | |
| 215-274 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHPHSBZN33 | PA | |
| 215-275 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHLDLPHZN1 | PA | |
| 215-276 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA | |
| 215-277 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHPHSBZN34 | PA | |
| 215-280 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHLDLPHZN2 | PA | |
| 215-281 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA | |
| 215-282 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN1 | PA | |
| 215-283 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN33 | PA | |
| 215-284 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHLDLPHZN2 | PA | |
| 215-285 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN33 | 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.