Bellsouth duplicate and diff. date

Hello All,
I have searched for this answer but haven't found one that seems to answer the question. I have two Bellsouth listing on my TU account. They have 2 different dates, they say collection accounts and are listed as open. I have been reading and saw something about collection accounts cannot be listed as open and what about the dates. Should I just dispute as duplicate or should I just send validation?
NCO BELLSOUTH 919 910 RESIDEN

Account Number: 56966XXXX
Acct Type: Collection Account
Acct Status: Open
Monthly Payment: N/A
Date Open: Feb, 2001
Balance: $370
Terms: N/A
High Balance: N/A
Limit: N/A
Past Due: N/A
Remarks: Placed for collection
Payment Status: Collection account

BELLSOUTH NORTH CAROLINA

Account Number: 100438XXXX
Acct Type: Collection Account
Acct Status: Open
Monthly Payment: N/A
Date Open: Feb, 2002
Balance: $370
Terms: N/A
High Balance: N/A
Limit: N/A
Past Due: N/A
Remarks: Placed for collection
Payment Status: Collection accoun

I'm new into this so I don't know if this question is valid or not.
Thanks