The caller, ABC Radio Net called and left a VM message @ 1:16 PM. The caller is from the ABC Network in NY confirming ticket requests for any ABC Affiliate Daytime Talk Shows.
This is a main line number for ABC's new York office. The calls I got were in regards to an appearance on Good Morning America, my guess would be that anyone who has an office in their studios in New York including game shows, news and other use this number for outgoing calls.