../../ Front ../ Phreaking ./ Seattle History
2L-5N Transition Seattle XBT Cutovers Exchange history overview
Adams Atwater Cherry Duwamish East Emerson Lakeview Main Melrose Parkway Sunset West

Chronological History of Central Offices — Washington and Idaho Area

Handwritten on original document:

Information herein compiled by Joel Cohn, switchman from Mutual + 4A offices in 1976 for a class in urban planning at U of W.

The original document is actually six documents:

CO Unit From To Started
Seattle Melrose Melrose CB Panel 1923-03
Seattle Rainier Rainier CB Panel 1923-03
Seattle West West CB Panel 1923-03
Seattle Garfield Garfield CB Panel 1923-09
Seattle Main Main CB Panel 1924-02
Seattle Main Elliott CB Panel 1924-02
Seattle Riverside Main CB #1 #1 Step 1927-02
Seattle East East CB #1 Panel 1927-09
Seattle East Prospect CB #1 Panel 1927-09
Seattle Main Seneca (new) Panel 1929-03
Yakima - CB #8 #1 Step 1930-11
Seattle Garfield Alder (new) Panel 1930-12
Spokane Riverside Riverside CB #1 #1 Step 1931-07
Seattle Melrose Evergreen (new) Panel 1931-08
Seattle East Capitol CB #1 Panel 1932-08
Tacoma Market Main CB #1 #1 Step 1933-04
Tacoma Market Broadway CB #1 #1 Step 1933-04
Othello - (new) 32A32 12-1937
Tacoma Yukon Crestview Magneto 105A 350A 1938-06
Tacoma Lakewood Lakewood (new) 350A 1938-07
Coulee City - Magneto 105A 32A32 1938-10
Olympia - CB #8 #1 Step 1938-12
Spokane Keystone Lakeview CB #1 #1 Step 1940-03
Spokane Walnut Walnut CB #9 #1 Step 1940-03
Belfair - (new) 32A32 1940-05
Liberty Lake - (new) 32A32 1940-05
Silverdale - CB-Dean 355A 1940-05
Tacoma Waverly Atlas (new) 350A 1940-05
Port Madison - Magneto 105A 355A 1940-06
Port Orchard - CB-Dean 355A 1940-06
Tacoma Granite Granite (new) 350A 1940-06
Tacoma Proctor Proctor CB #1 #1 Step 1940-06
Buckley - Magneto 105A 355A 1940-07
Culdesac - (new) 32A32 1940-07
Des Moines - Magneto 105A 355A 1940-07
Wilkeson - Magneto 1800 36A1 1940-07
Waitsburg - Magneto 105A 355A 1940-12
Spokane Glenwood Glenwood CB #1 #1 Step 1941-03
Graham - (new) 32A32 1941-05
Tacoma Hawthorne Garland CB #1 #1 Step 1941-06
Sprague - CB "C" 355A 1941-07
Seattle West Avalon (new) #1XB 1941-09
Seattle Rainier Lander (new) #1XB 1941-10
Seattle Kenwood Kenwood CB #1 #1XB 1942-02
Seattle Kenwood Vermont CB #1 #1XB 1942-02
Renton - CB #9 350A 1942-05
Ravensdale - Magneto #1012A 386A 1944-11
Black Diamond - Magneto 1800 32A32 1942-12
Tacoma hawthorne Hillside (new) #1 Step 1944-12
Seattle Sunset Dexter (new) #1XB 1945-04-29
Lake Crescent - Magneto S.C. 386B 1946-03-15
Spokane Empire Fairfax (new) SxS 1946-03-30
Seattle Kenwood Filmore (new) #1XB 1946-10-19
Eureka - Magneto J.B. CX10 1946-11-18
Ocosta - (new) CX60 1946-12-14
Hatton - Magneto 1012A CX30 1946-12-18
Loon Lake - Magneto 1800 CX30 1947-01-30
Seattle East Minor (new) #1XB 1947-01-25
Coulee City - 32A32 355A 1947-03-31
Castle Rock - CB-Dean 355A 1947-05-24
Napavine - Magneto 105A CX60 1947-06-25
Frances - Magneto H-1182 CX30 1947-09-24
Lebam - Magneto H-1182 CX60 1947-09-24
Spokane Glenwood Hudson (new) #1 Step 1947-10-04
Centralia - CB #10 #1 Step 1947-10-11
Seattle Kenwood Sheridan CB #1 #1XB 1947-11-02
Seattle Sunset Sunset CB #1 #1XB 1947-11-02
Seattle Sunset Hemlock CB #1 #1XB 1947-11-02
Lummi Island - (new) CX30 1947-12-03
Tacoma Proctor Skyline (new) #1 Step 1947-12-20
Lakeside - CB #9 #1 Step 1948-01-10
South Bend - CB-Kellogg 355A 1948-01-17
Belfair - 32A32 355A 1948-02-25
Tyler - Magneto 1012A CX30 1948-02-25
Seattle Main XB Tandem (new) XBT 1948-04-12
Seattle West Holly (new) #1XB 1948-04-17
Port Gamble - (new) CX100 1948-05-06
Easton - (new) CX100 1948-06-04
Newman Lake - (new) 355A 1948-06-23
Elbe - (new) 355A 1948-06-30
Wilkeson - 36-A-1 CX100 1948-07-07
Port Ludlow - (new) CX100 1948-07-08
Du Pont - (new) CX100 1948-07-08
Starbuck - Magneto "D" CX30 1948-08-06
Seattle Rainier Mohawk (new) #1XB 1948-08-26
Edwall - Magneto 105A CX100 1948-08-31
South Prairie - Magneto 1012A CX60 1948-09-16
Wilbur - Magneto "C" 355A 1948-09-30
Nespelem - 551-B 355A 1948-10-07
Port Angeles - CB-Dean #1 Step 1948-10-16
Lake Quinault - Magneto 1800 CX100 1948-10-21
Battleground - Magneto 105A 355A 1948-11-23
Puyallup - CB-Kellogg #1 Step 1948-12-04
Seattle Logan Logan CB #11 #1XB 1948-12-13
Seattle Logan Cherry CB #11 #1XB 1948-12-13
Seattle Emerson Emerson (new) #1XB 1948-12-16
Benge - 550-C CX30 1948-12-21
Warden - (new) 355A 1948-12-30
Pacific Beach - Magneto 105A CX100 1949-02-10
Moclips - Magneto 1800 CX100 1949-03-01
Pateros - Magneto 105A 355A 1949-03-09
Maple Valley - (new) 355A 1949-03-17
Ravensdale - 386A CX60 1949-04-07
Pasco - CB #12 #1 Step 1949-04-30
Lake Crescent - 386B CX200A 1949-07-21
Seattle Main Mutual (new) #1XB 1949-08-13
Hartline - Magneto 1800 CX200A 1949-11-17
Bremerton - CB #11 #1 Step 1949-11-20
Issaquah - 605A PBX 355A 1949-12-07
Lummi Island - CX30 CX200A 1949-12-20
Odessa - Magneto 105A 355A 1949-12-20
Marcus - (new) CX200A 1949-12-21
Spokane Empire Empire (new) #1 Step 1950-01-16
Chehalis - CB #10 #1 Step 1950-01-28
Sunnyslope - (new) 355A 1950-02-21
Eureka - CX10 CX30 1950-04-05
Green Bluff - PBX CX200A 1950-06-16
Vancouver - CB #11 #1 Step 1950-06-17
Spokane Main Temple (new) #1 Step 1950-09-12
Seattle Emerson Gladstone (new) #1XB 1950-09-28
Wallula - (new) 551B 1950-09-27
Sumner - CB #12 #1 Step 1951-03-03
Moses Lake Air Base (new) 355A 1951-04-11
Tacoma Market Fulton (new) #1 Step 1951-07-24
Ashford - (new) 356A 1951-08-06
Othello - 32A32 355A 1951-08-07
Shelton - CB #9 #1 Step 1951-08-11
Loon Lake - CX30 32A32 1951-08-30
Elk - (new) 356A 1951-09-10
Copalis - (new) 356A 1951-09-27
Deer Park - Magneto 105A 355A 1951-09-27
Spokane Trojan Trojan (new) #1 Step 1951-10-31
Graham - 32A32 355A 1952-05-22
Ephrata - CB #12 #1 Step 1952-07-12
Lewiston - CB #11 #1 Step 1952-11-01
Wallula - 551B (discontinued) 1952-11-01
Green Bluff - CX200A 355A 1952-11-15
Liberty Lake - 32A32 355A 1942-11-15
Orchards - 551D 355A 1953-01-29
Wilson Creek - Magneto 1800 CX200A 1953-06-11
Springdale - Magneto 105A 32A32 1953-06-12
Almira - Magneto 105A 356A 1953-06-18
Ridgefield Kellogg - 355A 1953-07-14
Eureka - CX30 CX60 1953-07-16
Winlock - CB605 355A 1953-10-01
Black Diamond - 32A32 355A 1954-01-28
Seattle Kenwood Juniper (theoretical) (discontinued, no equipment change) 1954-03
Roy - Magneto 105A 32A32 1954-06-03
Hoodsport - Magneto 105A 355A 1954-06-04
Des Moines Trinity 355A #1 Step 1954-07-25
Oroville Grover 6 Magneto 105A 355A 1954-07-29
Seattle East XB Tandem (new) XBT 1954-09-05
Craigmont Waverly 4 Magneto 105A (A) 355A 1954-09-12
Lind Orchard 7 Magneto 1005-1006 355A 1954-09-29
Port Blakely Viking CB #12 #1 Step 1954-10-03
South Prairie - CX60 (B) 1954-11-13
Pe Ell University 8 Magneto 1240D - 1954-12-09
Oakville Browning 3 CX30 (Combined with Rochester) 1954-12-12
Rochester Browning 3 Magneto 105B 355A 1954-12-12
Farmington - Magneto 1800 (Sold to General Telephone) 1954-12-16
Palouse - "C" Frame MCB (Sold to General Telephone) 1954-12-16
Winchester Waverly 4 Magneto 1800 (Combined with Craigmont) 1954-12-29
Stites Webster 6 Magneto 1800 (Combined with Kooskia) 1954-12-29
Kooskia Webster 6 Magneto 105A 355A 1954-12-29

Note A: This board converted to a toll switchboard and left in place.

Note B: Exchange sold 1954-11-13.