- City / exchange
- Mattawa
- Province / state
- Washington
- Country
- United States
- Carrier
- United States Cellular - Wa
- Line type
- Likely mobile
- OCN
- 6270
- Status
- In Service
- Assigned
- 07/19/2018
- Number pooling
- Yes (block shared between carriers)
509-400 phone numbers
Mattawa, Washington, United States · United States Cellular - Wa
Reported numbers in 509-400
No numbers in this block have been reported by visitors yet.
What does the 509-400 prefix tell you?
Every North American number is area code + prefix + line. The prefix 509-400 was assigned to United States Cellular - Wa on 07/19/2018 for the Mattawa exchange. A call from this block usually originates from a United States Cellular - Wa customer in or near Mattawa, but caller ID can be spoofed to show any number.