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Area Code and Exchange (360) 503 in Washington

Exchange Code 503 for Area Code 360 covers the city of Sedro-Woolley, Skagit County in the State of Washington. It is centered at N 48º 30' 14", W 122º 14' 10". This Exchange Code was introduced on 14 January 2000 and is designated as being used for Landline telephones.

This Exchange covers telephone numbers ranging from (360) 503-0000 to (360) 503-9999.

In this Exchange Code there are 10 telephone numbers that our research shows belong to legitimate businesses.

Technical Information for Exchange (360) 503

NPA/Area Code: 360
NXX/Exchange Code: 503
City: Sedro-Woolley
County: Skagit
State: Washington
Rate Center: MT VERNON
OCN: 5812
Time Zone: PST
DST Observed:
Exchange Status: Active
NXX Use Type: Landline
NXX Intro Date: 14 January 2000
Latitude: 48.50389
Longitude: -122.23611
New NPA:
Overlay:
LATA: 674
FIPS: 53057
CBSA Code: 34580
Number Pooling: Yes
CBSA Name: Mount Vernon-Anacortes, WA

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Number Pooling in Exchange (360) 503

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 360-503 and the following thousand blocks are currently assigned to carriers.

Businesses and other Entities in Exchange (360) 503 10

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

(360) 503-1958

Registered to MISS TOMI LYNNE FLACK LMHC in SEDRO WOOLLEY.

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(360) 503-1556

Registered to MS. MIRANDA MARIE BLAKE M.S. in ANACORTES.

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(360) 503-1676

Registered to HIGHWAY 20 HOMETOWN PHARMACY LLC in SEDRO WOOLLEY.

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(360) 503-1398

Registered to MEGAN ASHLEY JACOBS CDP in BURLINGTON.

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(360) 503-1677

Registered to HIGHWAY 20 HOMETOWN PHARMACY LLC in SEDRO WOOLLEY.

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(360) 503-1512

Registered to MRS. ANNELISE SPRAGG ED.S. in ANACORTES.

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(360) 503-1639

Registered to MS. VIRGINIA ANN MEINDL M.S. in ANACORTES.

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(360) 503-1438

Registered to MRS. CHARLOTTE BODDING M.A., CCC-SLP in ANACORTES.

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(360) 503-1218

Registered to MRS. NANCY J. SCHAFER M.A., C.C.C.-S.L.P. in ANACORTES.

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(360) 503-6915

Registered to PACIFIC CATARACT AND LASER INSTITUTE INC PC in TUALATIN.

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