There are many different T1 Service providers around the world.
How do you find the right one? You can try this link here.
Nationwidebandwidth.com offers a comparison sheet that would make choosing an Internet
service provider easier for the regular or busy consumer.
Most T1 Internet Service Providers resell their T1 lines.
This does not necessarily mean the quality of the T1 would
be any worse than purchasing from a major ISP. In most cases,
it may be better to buy from a reseller, due to promotions
or bulk discount costs that may not be readily available to
the normal consumer. Also, dealing with a reseller may save
you the headache of going through customer service, since
usually reselling companies have a smaller client to customer
service ratio. It really is preference for consumer to either
go with a reputable company or to a reseller company. Major
ISPs usually have better customer service and a wider and
reputable “mark” in the Internet industry, which
would reassure you that you are getting the product that you
ordered.
