What carrier is responsible for managing an 800 number? 

Call the Ameritech service at 800-337-4194. This service provides the "resporg ID" and the associated customer service number of the responsible organization.

Some Popular Resporg ID's

Carrier

Resporg ID

Level 3

LVC01

Cavalier Telephone

HER01

AT&T

ATXxx

Sprint

SPBxx

PAETEC

PKC03

MCI

MCIxx, WILxx

Infotel Systems - Richmond, Virginia - Business Telephone Systems, Voice & Data Networks, Cabling, Carrier Services  804-266-6600