ISP Address Allocation

rfuller at rfuller at
Fri Nov 12 19:38:59 UTC 1999

What is the best and most accurate way to determine an ISP's range of
addresses?  For example, if I wanted to see what AT&T's allocation of IP
addresses are, how would I go about doing this in the most timely manner?
What about for smaller ISPs?

Ron Fuller, CCDP, CCNP-ATM, CCNP-Security, MCNE, MCP
3X Corporation
rfuller at

More information about the NANOG mailing list