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Area Code and Exchange (509) 553 in Washington

Exchange Code 553 for Area Code 509 covers the city of Colfax, Whitman County in the State of Washington. It is centered at N 46º 52' 48.6", W 117º 21' 51.66". This Exchange Code was introduced on 3 March 2001 and is designated as being used for Wireless telephones.

This Exchange covers telephone numbers ranging from (509) 553-0000 to (509) 553-9999.

In this Exchange Code there are 2 telephone numbers that have been the subject of complaints to the FCC and 2 telephone numbers that our research shows belong to legitimate businesses.

Technical Information for Exchange (509) 553

NPA/Area Code: 509
NXX/Exchange Code: 553
City: Colfax
County: Whitman
State: Washington
Rate Center: COLFAX
OCN: 6664
Time Zone: PST
DST Observed:
Exchange Status: Active
NXX Use Type: Wireless
NXX Intro Date: 3 March 2001
Latitude: 46.8801655
Longitude: -117.3643495
New NPA:
LATA: 676
FIPS: 53075
CBSA Code: 39420
Number Pooling: Yes
CBSA Name: Pullman, WA


Number Pooling in Exchange (509) 553

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 509-553 and the following thousand blocks are currently assigned to carriers.

Telephone numbers subject to FCC Complaints in Exchange (509) 553 2

Below are the 2 telephone numbers that are subject to complaints to the FCC in this Exchange Code.

(509) 553-0113

This number has been the subject of 1 complaint to the FCC.

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(509) 553-0996

This number has been the subject of 1 complaint to the FCC.

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Businesses and other Entities in Exchange (509) 553 2

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

(509) 553-9221


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(509) 553-5027


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