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Area Code and Exchange (509) 310 in Washington

Exchange Code 310 for Area Code 509 covers the city of White Salmon, Klickitat County in the State of Washington. It is centered at N 45º 43' 39.43", W 121º 29' 11.26". This Exchange Code was introduced on 31 October 2000 and is designated as being used for Wireless telephones.

This Exchange covers telephone numbers ranging from (509) 310-0000 to (509) 310-9999.

In this Exchange Code there are 2 telephone numbers that our research shows belong to legitimate businesses.

Technical Information for Exchange (509) 310

NPA/Area Code: 509
NXX/Exchange Code: 310
City: White Salmon
County: Klickitat
State: Washington
Rate Center: WH SALMON
OCN: 6664
Time Zone: PST
DST Observed:
Exchange Status: Active
NXX Use Type: Wireless
NXX Intro Date: 31 October 2000
Latitude: 45.7276194
Longitude: -121.4864619
New NPA:
LATA: 672
FIPS: 53039
CBSA Code:
Number Pooling: Yes


Number Pooling in Exchange (509) 310

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 509-310 and the following thousand blocks are currently assigned to carriers.

Businesses and other Entities in Exchange (509) 310 2

Below are details of all of the legitimate businesses and other entities that we have identified within this Exchange Code.

(509) 310-9313

Registered to MRS. JACKIE RENEE KISER MA 60513345 in LONGVIEW.

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(509) 310-9548


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