UFRGS
AS19200 (UFRGS) announces at least three prefixes:
143.54.0.0/16
IPv4 address block not managed by the RIPE NCC
1970-01-01
NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK
143.54.0.0-143.55.143.255
168.232.236.0/22
168.231.128.0-168.245.195.255
2804:1f20::/32
0