I have medium size customer with current ip utilization of around /19 subnet, they have been getting these ip's from their Datacenter company uptill now.
The company has decided to get their own subnet directly assigned by the ARIN and given me the responsibility of dealing with ARIN ( which ofcourse i have never done earlier ).
I have few questions and would love to hear something important from you experienced & intelligent people here :-
Question 1 : Do i need to get an AS no. from ARIN ? we might not have a current need for dual ISP but might have one latter on. So, if ARIN doesnt provide me with AS no. and tell me to use Private AS no. with my single ISP , what do i losse in that Senario ? does that means that any abuse of ip address ( i hope abuse doesnt happen ) will go to my ISP rather than me or My client would not be able to assign those IP's further to smaller companies since we dont have a public AS no.
Question 2: what paperwork is must to get an AS no. ?
Question 3: If i do not get an AS no. but still needs the IP subnet assigned from ARIN , so that i can change my ISP on my will ? is that something that works with ARIN ( given they hate giving ipv4 now ).
Please provide me with you real experiences.
Thank you very much
You might want to ask over on the NANOG mailing list.
The ARIN website is pretty comprehensive about requesting ASes.
Getting IPV4 address space is unlikely these days. Even if you have your own IP block, you can only change ISPs if you can get them to agree to advertise your block on your behalf.
Your best bet is to work through an experienced ISP with these matters.