Telecommunications
San Francisco
23 businesses listed. How we order them.
Telecommunications in San Francisco by the numbers
SiteCity lists 23 businesses under Telecommunications in San Francisco, CA, as of September 28, 2026. 21 list a phone number and 23 list a website.
Most-listed ZIP codes: 94104 (7), 94107 (4) and 94105 (3).
Listings come from Overture Maps Foundation places data (release 2026-08-19.0, which includes Foursquare OS Places) and from businesses added or updated through SiteCity. How we count.
Listings23
- Genbook
548 Market St, 94104
- Windstream
100 Spear St #1950, 94105
- Crate Japan
2037 Irving St, 94122
- Call Tools
548 Market St # 61328, 94104
- PhoneNumberGuy, Inc.
50 California St Ste 1500, 94111
- Black Lotus Communications
1 Sansome St Ste 1500, 94104
- KeepandShare.com
725 Euclid Ave, 94118
- EZ Texting
548 Market St Ste 44523, 94104
- Teridion
300 Brannan St Ste 101, 94107
- Colocation America
200 Paul Ave Ste 400, 94124
- Easy Office Phone
795 Folsom St Fl 1, 94107
- Esendex
50 California St Ste 1500, 94111
- DIRECTV & AT&T - Authorized Retailer
155 Sansome St, 94104
- Masergy Communications
455 Market St Ste 2020, 94105
- IPC Network Services
200 Paul Ave, 94124
- Thwartpoker
340 Brannan St Ste 204, 94107
- Wanelo
548 Market St Ste 38767, 94104
- City Cabling
100 Pine St Ste 1250, 94111
- UnitedLayer LLC
200 Paul Ave Ste 110, 94124
- Frontier Communications
333 3rd St, 94107
- Inflow Communications, Inc Mitel-Shoretel San Francisco
548 Market St Ste 54242, 94104
- iFax
95 3rd St, 94103
- I-Step Communications
604 Mission St Ste 800, 94105
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