You are reviewing the Area Code (NPA/NXX) report for 667-421. Did you mean to search the SMS short code 667421?
Paste raw digits, a formatted phone number, an area code, an NPA-NXX block, or a short code. US and Canada phone lookups route automatically, and international iMessage checks are available separately.
| Raw Number | 667421 |
| Basic Format | 667-421 |
| NPA (Area Code) | 667 |
| NXX | 421 |
| NPA-NXX-X | OCN | Company | Rate Center | Use Type | Assign Date | City | State | Region | Block Effective Date |
|---|---|---|---|---|---|---|---|---|---|
| 667-421-0XXX | 490J | BOOST SUBSCRIBERCO L.L.C. | COLUMBIA | AS | 12/22/2023 | COLUMBIA | MD | MA | 01/21/2024 |
| 667-421-1XXX | 490J | BOOST SUBSCRIBERCO L.L.C. | COLUMBIA | AS | 12/22/2023 | COLUMBIA | MD | MA | 04/26/2024 |
| 667-421-2XXX | 876D | ONVOY, LLC - MD | COLUMBIA | AS | 01/30/2024 | COLUMBIA | MD | MA | 02/25/2024 |
| 667-421-3XXX | 876D | ONVOY, LLC - MD | COLUMBIA | AS | 01/30/2024 | COLUMBIA | MD | MA | 02/25/2024 |
| 667-421-4XXX | 4036 | NEW CINGULAR WIRELESS PCS, LLC - DC | COLUMBIA | AS | 12/11/2024 | COLUMBIA | MD | MA | 12/23/2024 |
| 667-421-5XXX | 4036 | NEW CINGULAR WIRELESS PCS, LLC - DC | COLUMBIA | AS | 12/11/2024 | COLUMBIA | MD | MA | 12/23/2024 |
| 667-421-6XXX | 4036 | NEW CINGULAR WIRELESS PCS, LLC - DC | COLUMBIA | AS | 12/11/2024 | COLUMBIA | MD | MA | 12/23/2024 |
| 667-421-7XXX | 6855 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | COLUMBIA | AS | 06/14/2023 | COLUMBIA | MD | MA | 06/26/2023 |
| 667-421-8XXX | 073H | TELNYX LLC | COLUMBIA | AS | 03/27/2023 | COLUMBIA | MD | MA | 04/24/2023 |
| 667-421-9XXX | 6855 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | COLUMBIA | AS | 06/14/2023 | COLUMBIA | MD | MA | 06/26/2023 |
| 667-421-XXXX | 073H | TELNYX LLC | COLUMBIA | AS | COLUMBIA | MD |
Reports
Anonymous User from , MD
May 14, 2025 at 8:33 AM
Anonymous User from , MD
May 13, 2025 at 7:55 AM
Anonymous User from Montgomery Village, Maryland
January 16, 2025 at 6:47 AM