Area Code and Exchange (509) 584 in Washington
Exchange Code 584 for Area Code 509 covers the city of Wapato, Yakima County in the State of Washington. It is centered at N 46º 26' 51.46", W 120º 25' 13.22". This Exchange Code was introduced on 10 May 2007 and is designated as being used for Landline telephones.
This Exchange covers telephone numbers ranging from (509) 584-0000 to (509) 584-9999.
In this Exchange Code there are 2 telephone numbers that our research shows belong to legitimate businesses.
Technical Information for Exchange (509) 584
NXX/Exchange Code: 584
Rate Center: WAPATO
Time Zone: PST
Exchange Status: Active
NXX Intro Date: 10 May 2007
CBSA Code: 49420
Number Pooling: Yes
Number Pooling in Exchange (509) 584
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 509-584 and the following thousand blocks are currently assigned to carriers.