doc/pages/01.administrate/07.specific_use_cases/02.isp/isp.md

title	template	taxonomy	routes
Internet service providers	docs	category docs	default /isp

[div class="btn btn-lg btn-default"] Main configuration box [/div]

Here is a non-comprehensive list of internet service providers by country, which contains criteria about tolerance to self-hosting.

A "no" may cause problems for using your server or may require you to make additional configuration changes. Status in brackets indicates the default behavior.

(For the list of ISP in France/Belgian, check the french version of this page)

USA

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
Cox	Multiple	Yes	No. Only for business class customer.	No	No	Yes, as a business class customer
Charter	Multiple	Yes	No. Only for business class customer.	No	No	Yes, as a business class customer
DSLExtreme	Multiple	Yes	Yes	No	No	Yes, extra charge.
AT&T	Multiple	Yes	No. Only for business class customer.	unknown.	unknown.	unknown.
Xfinity (Comcast)	Multiple	Yes	No. Only for business class customer.	unknown.	unknown.	Yes, as a business class customer

UK

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
BT Internet	Yes	-	Yes	-	-	No
Virgin Media	Yes	-	-	-	No	No
ZEN Internet	Yes	-	Yes	-	Yes	-
PlusNet	Yes	Yes	Yes	No	Yes, if you raise a ticket	Small one off Charge

Brazil

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
Global Village Telecom	Multiple	Yes	No. Only for Fix IP	No	No	Yes, extra charge.

Ireland

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
Whizzy Internet	Multiple	Yes	Yes	Yes	Yes	Yes

Canada

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
Telus	Multiple	-	No. Extra charge	-	-	No. Extra charge
TekSavvy	Multiple	-	Yes	No	-	No. Extra charge

Sweden

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
Telia	Multiple	Yes	No. Business only.	Yes	No. Business only.	No. Business only.
Bredbandsbolaget	Multiple	Yes	No. Business only.	Yes	No. Business only.	No. Business only.
Ownit	Multiple	Yes	Yes	N/A?	?	Yes

Ownit reserves port 3 and 4 of their router to TV. With a simple call to their hotline, explaining that you want to selfhost, they can reassign one of the ports to be in bridge mode. It means that your server will have its own public fixed IP address, in addition to the modem's.

Switzerland

Most of non business IP provided by ISP are blacklisted.

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
Sunrise	Multiple	No	Yes	No	-	-
Swisscom	Multiple	No	Yes	No	No	No
VTX	Multiple	No	Yes	No	-	-

South Korea

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
LG U+ (HelloVision)	Multiple	Yes	Yes (Without ISP Router)	No	-	Partial
KT(SkyLife, Qook&Show)	Multiple	Yes	Yes	No	-	Partial
SKT (SK Broadband)	Multiple	Yes	Yes	No	-	Partial

Hungary

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
DIGI Távközlési és Szolgáltató Kft.	Yes	No	No. Business only.	No	No	No. Business only

Finland

Service provider	Box (modem/router)	uPnP available	Port 25 openable	Hairpinning	Customizable reverse DNS	Fix IP
DNA	Multiple	Yes	No 1	Yes	No	No. Only for business.
Elisa	Multiple	Yes	No 1	Yes	Not available for consumers	No. Only for Business.
Telia	Multiple	Yes	No 1	Yes	Not available for consumers	No. Only for Business.

If you want to add international ISPs information, please do consider modifying this page.

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1. Regulations in Finland prohibit the use of Port 25 for consumers. ↩︎