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Area Code and Exchange (360) 554 in Washington

Exchange Code 554 for Area Code 360 covers the city of Port Townsend, Jefferson County in the State of Washington. It is centered at N 48º 7' 1.34", W 122º 45' 37.61". This Exchange Code was introduced on 13 October 1999 and is designated as being used for Landline telephones.

This Exchange covers telephone numbers ranging from (360) 554-0000 to (360) 554-9999.

Technical Information for Exchange (360) 554

NPA/Area Code: 360
NXX/Exchange Code: 554
City: Port Townsend
County: Jefferson
State: Washington
OCN: 4273
Time Zone: PST
DST Observed:
Exchange Status: Active
NXX Use Type: Landline
NXX Intro Date: 13 October 1999
Latitude: 48.1170387
Longitude: -122.7604472
New NPA:
LATA: 674
FIPS: 53031
CBSA Code:
Number Pooling: Yes


Number Pooling in Exchange (360) 554

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 360-554 and the following thousand blocks are currently assigned to carriers.