MSYS
AS8569 (MSYS) announces at least 44 prefixes:
164.61.0.0/16
METRO-DE
1970-01-01
164.61.0.0-164.61.255.255
164.61.128.0/19
164.61.160.0/21
164.61.176.0/20
164.61.192.0/18
164.139.0.0/16
DE-METRO-19931216
164.139.0.0-164.139.255.255
164.139.0.0/21
164.139.8.0/22
164.139.16.0/20
164.139.36.0/24
164.139.40.0/24
164.139.48.0/20
164.139.64.0/20
164.139.84.0/22
164.139.88.0/21
164.139.96.0/19
164.139.136.0/21
164.139.144.0/20
164.139.160.0/19
164.139.160.0/21
164.139.176.0/20
164.139.192.0/19
164.139.224.0/21
164.139.236.0/22
164.139.244.0/22
164.139.248.0/22
164.139.252.0/22
194.99.160.0/19
HORTEN
194.99.160.0-194.99.255.255
194.99.192.0/18
194.99.192.0/22
194.99.196.0/22
194.99.200.0/22
194.99.204.0/22
194.99.208.0/22
194.99.212.0/22
194.99.220.0/22
194.99.232.0/22
194.99.240.0/22
194.99.244.0/22
194.120.192.0/19
DE-METRO
194.120.192.0-194.120.223.255
194.156.32.0/21
194.156.32.0-194.156.43.255
194.156.54.0/23
194.156.48.0-194.156.63.255
2001:4d20::/34
DE-METRO-20050816
2001:4d20::-2001:4d20:ffff:ffff:ffff:ffff:ffff:ffff
2001:4d20:4000::/34
3
AS8569
MSYS (AS Path prepending)
AS35466
Metro-BG-AS
AS39290
MGI-DE-AS