Has PSI been assigned network 1?

Or why are they announcing it to the rest of the Internet through
their box at MAE-East???

bash$ whois 1.0.0.0
No match for "1.0.0.0".

traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 40 byte packets
1 sl-dialup-2.sprintlink.net (192.157.36.128) 252 ms 245 ms 223 ms
2 192.157.36.1 (192.157.36.1) 251 ms 250 ms 251 ms
3 sl-dc-1-S3-T1.sprintlink.net (144.228.0.225) 252 ms 262 ms 253 ms
4 icm-dc-1-F0/0.icp.net (144.228.20.101) 275 ms 269 ms 252 ms
5 psi-mae-east-1.psi.net (192.41.177.235) 268 ms 254 ms 241 ms
6 washington2.dc.isdn.psi.net (38.146.99.110) 261 ms 271 ms 262 ms
7 1.1.1.1 (1.1.1.1) 457 ms 1284 ms 543 ms

Interesting...I used to trace 1.1.1.1 back when I was a Sprint customer as a
quick and easy way to verify ans connectivity. Then one day, it stopped
working...and I had to resort to more creative elements. It doesn't
really hurt anything, does it?

Dave