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
New assignments by month
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 215-342 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN4 | PA | |
| 215-343 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN45 | PA | |
| 215-344 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHPHSBZN37 | PA | |
| 215-345 | VERIZON PENNSYLVANIA, INC. | 9208 | DOYLESTOWN | PA | |
| 215-346 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHPHSBZN38 | PA | |
| 215-347 | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | 7309 | PHPHSBZN39 | PA | |
| 215-348 | VERIZON PENNSYLVANIA, INC. | 9208 | DOYLESTOWN | PA | |
| 215-349 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA | |
| 215-350 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHPHSBZN33 | PA | |
| 215-351 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-352 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN41 | PA | |
| 215-353 | AT&T - LOCAL | 7421 | LANSDALE | PA | |
| 215-354 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN40 | PA | |
| 215-355 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN40 | PA | |
| 215-356 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHLDLPHZN2 | PA | |
| 215-357 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN40 | PA | |
| 215-358 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN33 | PA | |
| 215-359 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN43 | PA | |
| 215-360 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHLDLPHZN2 | PA | |
| 215-361 | VERIZON PENNSYLVANIA, INC. | 9208 | LANSDALE | PA | |
| 215-362 | VERIZON PENNSYLVANIA, INC. | 9208 | LANSDALE | PA | |
| 215-363 | SPOK, INC. | 6630 | PHLDLPHZN1 | PA | |
| 215-364 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN40 | PA | |
| 215-365 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA | |
| 215-366 | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PHPHSBZN38 | PA | |
| 215-367 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN33 | PA | |
| 215-368 | VERIZON PENNSYLVANIA, INC. | 9208 | LANSDALE | PA | |
| 215-369 | VERIZON PENNSYLVANIA, INC. | 9208 | YARDLEY | PA | |
| 215-370 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHLDLPHZN2 | PA | |
| 215-371 | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | PHPHSBZN33 | PA | |
| 215-373 | SPOK, INC. | 6630 | PHLDLPHZN1 | PA | |
| 215-374 | SPOK, INC. | 6630 | PHLDLPHZN1 | PA | |
| 215-375 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN43 | PA | |
| 215-376 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN34 | PA | |
| 215-377 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PHPHSBZN44 | PA | |
| 215-378 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PHPHSBZN43 | PA | |
| 215-379 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN34 | PA | |
| 215-380 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHLDLPHZN1 | PA | |
| 215-381 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN3 | PA | |
| 215-382 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA | |
| 215-384 | PAETEC ITEL, LLC | 829J | PHLDLPHZN2 | PA | |
| 215-385 | AT&T - LOCAL | 7421 | PHPHSBZN39 | PA | |
| 215-386 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA | |
| 215-387 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN2 | PA | |
| 215-389 | VERIZON PENNSYLVANIA, INC. | 9208 | PHLDLPHZN1 | PA | |
| 215-390 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN33 | PA | |
| 215-392 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN38 | PA | |
| 215-393 | VERIZON PENNSYLVANIA, INC. | 9208 | LANSDALE | PA | |
| 215-394 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | PHPHSBZN39 | PA | |
| 215-396 | VERIZON PENNSYLVANIA, INC. | 9208 | PHPHSBZN40 | 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.