1. AUT-NUM Maintenance
Linx has seen a massive increase in the number of peers
This mean new sessions to your routers
And many update to RIPE to update your aut- num objects. ?
So - are you sure that your autnum object is correct ?

2. How do you update autnum ?
Manual Maintenance
Add a peer, fetch the RIPE object, update it
(everyone starts here)
Automatic Maintenance
Your network definition is in a DB
Your routers configuration and RIPE are generated from it
(very few ends here)

3. The easy way
You have backup of your router configs – do you ?
Generate your aut-num from your routers configuration backup (use the peer description)
Give it a try now, ask me question tomorrow (should take less than 15 minutes to setup on a debian/ubuntu machine)