Post #622599 by Pittsburgh pauly on Fri, Jan 27, 2012 8:49 AM

Looks like it's the phone, at least according to:
http://forums.cabling-design.com/telecom/Re-San-Francisco-and-Oakland-Exchange-Numbering-5135-.htm

"From 1960 or 1961, the list of exchange names and rate centers,
all of which are extant today unless indicated otherwise:
Main-Piedmont [need to get third digit]:

CRestview
GLencourt
HIghgate
OLympic
TEmplebar
TWinoaks
..."

It pops up a few other times (but the fact that there's now a Temple Bar makes it difficult to search) including a history of "How Japanese and Japanese-Americans Brought Soyfoods to the United States and Hawaii -- A History (1851-2011): Extensively Annotated Bibliography and Sourcebook" from the Soyinfo Center.
zzzzzzzzzzzzz