On 6/22/16 6:36 AM, Spurling, Shannon wrote:
It’s a problem with the miss-use of the RIR delegation of a legacy
block.
The assumption that because a block is assigned to a particular RIR,
all users in that block have to be in that RIR’s territory, without
actually running a query against that RIR’s Whois database.
I don't think it's an RIR / RIR-related problem, just - as you said - a
short-sighted security practice.
Operators that connect to the Internet and then decide "OMG, Asia is
evil" are fairly frustrating. This has caused me a number of problems
for decades, as AU/NZ are fairly frequent trading partners of USA and I
have frequently run into this attitude.