Toot

The IP space the FBI uses to send mail is in transition to the Asia Pacific Network Information Centre (APNIC). What could go wrong?

fbi.gov descriptive text "v=spf1 +mx ip4:153.31.0.0/16 ip4:52.245.185.78 -all"

$ mx fbi.gov

10 153.31.119.142 mx-east.fbi.gov

20 153.31.192.142 mx-west.fbi.gov

$ whois 153.31.119.142

% [whois.apnic.net]

% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to '153.0.0.0 - 153.255.255.255'

% Abuse contact for '153.0.0.0 - 153.255.255.255' is 'helpdesk@apnic.net'

inetnum: 153.0.0.0 - 153.255.255.255

netname: ERX-NETBLOCK

descr: Early registration addresses

remarks: ------------------------------------------------------

remarks: Important:

remarks:

remarks: Networks in this range were allocated by InterNIC

remarks: prior to the formation of Regional Internet

remarks: Registries (RIRs): AfriNIC, APNIC, ARIN, LACNIC and RIPE NCC.

remarks:

remarks: Address ranges from this historical space have now

remarks: been transferred to the appropriate RIR database.remarks:

remarks: If your search has returned this record, it means the

remarks: address range is not administered by APNIC.

…

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