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Area Code and Exchange (509) 940 in Washington

Exchange Code 940 for Area Code 509 covers the city of Richland, Benton County in the State of Washington. It is centered at N 46º 17' 8.49", W 119º 17' 4.06". This Exchange Code was introduced on 11 December 2001 and is designated as being used for Landline telephones.

This Exchange covers telephone numbers ranging from (509) 940-0000 to (509) 940-9999.

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

Technical Information for Exchange (509) 940

NPA/Area Code: 509
NXX/Exchange Code: 940
City: Richland
County: Benton
State: Washington
Rate Center: RICHLAND
OCN: 712G
Time Zone: PST
DST Observed:
Exchange Status: Active
NXX Use Type: Landline
NXX Intro Date: 11 December 2001
Latitude: 46.2856907
Longitude: -119.2844621
New NPA:
LATA: 676
FIPS: 53005
CBSA Code: 28420
Number Pooling: Yes
CBSA Name: Kennewick-Richland, WA


Number Pooling in Exchange (509) 940

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 509-940 and the following thousand blocks are currently assigned to carriers.

Businesses and other Entities in Exchange (509) 940 1

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

(509) 940-7838


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