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Area Code and Exchange (509) 402 in Washington

Exchange Code 402 for Area Code 509 is located in the State of Washington.

This Exchange covers telephone numbers ranging from (509) 402-0000 to (509) 402-9999.

In this Exchange Code there are 1 telephone numbers that our research shows belong to legitimate businesses.

Technical Information for Exchange (509) 402

NPA/Area Code: 509
NXX/Exchange Code: 402
City:
County:
State: Washington
Rate Center: GRANDVIEW
OCN: 814D
Time Zone:
DST Observed:
Exchange Status: Active
NXX Use Type: Unknown
New NPA:
Overlay:
LATA:
FIPS:
CBSA Code:
Number Pooling: Yes

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Number Pooling in Exchange (509) 402

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 509-402 and the following thousand blocks are currently assigned to carriers.

Businesses and other Entities in Exchange (509) 402 1

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

(509) 402-3442

Registered to KATELYNN KOLB in RICHLAND.

Click here for more details.