Area Code and Exchange (206) 231 in Washington
Exchange Code 231 for Area Code 206 covers the city of Seattle, King County in the State of Washington. It is centered at N 47º 36' 22.35", W 122º 19' 55.45". This Exchange Code was introduced on 13 June 2017 and is designated as being used for Landline telephones.
This Exchange covers telephone numbers ranging from (206) 231-0000 to (206) 231-9999.
In this Exchange Code there are 25 telephone numbers that have been the subject of complaints to the FCC.
Technical Information for Exchange (206) 231
NXX/Exchange Code: 231
Rate Center: DES MOINES
Time Zone: PST
Exchange Status: Active
NXX Intro Date: 13 June 2017
Number Pooling: Yes
Number Pooling in Exchange (206) 231
The initial set up of an Exchange was to have all 10,000 numbers (0000 - 9999) for a particular Rate Center allocated to the same local exhange carrier. With the advent of multiple carriers, allocating each one of them their own Exchange Code would be inefficient and soon use up the available number pools for a particular area. To counter this, some exchanges are split into blocks of 1,000 numbers, which can each be allocated to individual carriers. This cuts down on wasted numbers that aren't allocated as each carrier has a smaller pool available.Number Pooling is activated in Exchange 206-231 and the following thousand blocks are currently assigned to carriers.
Telephone numbers subject to FCC Complaints in Exchange (206) 231 25
Below are the 25 telephone numbers that are subject to complaints to the FCC in this Exchange Code.