2 emails other than this one should be good to verify a 20 year old account that is used daily.
Some people do not have a landline phone, many of them using several VOIP to have a phone number. Some older ones only receive calls from doctors offices (1-2%), robot sales calls (70-80%) and rest of them are from con artists. For that a cell phone account is not justified. Please accept a VOIP account, that is better than a throw away cell phone.
Trisha Cate commented
Absolutely messed up! Had my account for over 16 years, been logging into it on the same computer almost daily, and literally the same day I got a new phone number my account suddenly asked for a secondary verification. Now, I was entering in the correct email, correct password, using a known (over 10 years) device. It just wanted a secondary verification, which I could not do because I no longer had access to my old phone number. Contacted "customer support" had to send them my ID to verify I was me. No issues there... They COULD fix the problem, but ONLY if I paid for the $12.99 monthly Premium Customer Support Access. ARE YOU SERIOUS?!?!?! After a 30 min phone call, I am done with Yahoo, should have ditched it years ago. (That was my first problem) All because of a technicality and a new monthly subscription they are basically forcing me into if I want to regain access to my account. I can't even, I am still dumbfounded. You would think that an active email of 16+ years would mean something, most definitely not. Will never use Yahoo for anything again. I only made this account so I could comment on this stuff.