NumberResearchRecent prefix assignments
366 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
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
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 202-446 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN1 | DC | |
| 202-447 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-448 | PAETEC ITEL, LLC | 829J | WSHNGTNZN1 | DC | |
| 202-452 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-453 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-454 | PAETEC ITEL, LLC | 829J | WSHNGTNZN1 | DC | |
| 202-455 | BANDWIDTH.COM CLEC, LLC - DC | 074F | WSHNGTNZN1 | DC | |
| 202-456 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-457 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-458 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-459 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN1 | DC | |
| 202-462 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-463 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-464 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN1 | DC | |
| 202-465 | METROPCS, INC. | 5562 | WSHNGTNZN1 | DC | |
| 202-466 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-467 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-471 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-472 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-473 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-475 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-477 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-478 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN1 | DC | |
| 202-479 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-481 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WSHNGTNZN1 | DC | |
| 202-482 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-483 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-484 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-485 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-486 | METROPCS, INC. | 5562 | WSHNGTNZN1 | DC | |
| 202-487 | METROPCS, INC. | 5562 | WSHNGTNZN1 | DC | |
| 202-488 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-489 | METROPCS, INC. | 5562 | WSHNGTNZN1 | DC | |
| 202-491 | METROPCS, INC. | 5562 | WSHNGTNZN1 | DC | |
| 202-492 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN1 | DC | |
| 202-493 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-494 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC | 6402 | WSHNGTNZN1 | DC | |
| 202-496 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-497 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSHNGTNZN1 | DC | |
| 202-501 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-502 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-503 | ONVOY, LLC - DC | 850D | WSHNGTNZN1 | DC | |
| 202-504 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-508 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-511 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | DC | |
| 202-512 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-513 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-514 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-515 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC | |
| 202-516 | VERIZON WASHINGTON DC, INC. | 9211 | WSHNGTNZN1 | DC |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.