AS6855 SK-TELEKOM Slovak Telekom, a.s.

SK-TELEKOM Slovak Telekom, a.s. · registered in Slovakia

IPv4 addresses662,78438 prefixes · 0.021% of announced IPv4

Rank in Slovakia#1largest network in SK by IPv4 space, of 191 · 26.12% of SK

Rank worldwide#475of 79,396 networks with IPv4

IPv69 x /32 (590,086 x /48)9 prefixes

CountrySlovakia196 ASNs registered there

Open AS6855 in ASN lookup Look up an IP in this network (78.98.0.1) All networks in Slovakia

IPv4 prefixes

All 38 prefixes, in address order.

78.98.0.0/15
84.47.0.0/17
85.239.68.0/23
85.239.80.0/21
85.248.31.0/24
85.248.74.0/24
87.197.0.0/16
91.127.0.0/16
91.195.106.0/23
91.245.16.0/23
95.102.0.0/15
178.40.0.0/15
185.58.102.0/23
193.84.7.0/24
193.84.96.0/22
193.84.245.0/24
193.200.143.0/24
193.201.110.0/24
193.228.234.0/24
194.48.241.0/24
194.50.215.0/24
194.154.224.0/19
194.169.224.0/24
195.91.0.0/17
195.146.128.0/23
195.146.130.0/24
195.146.131.0/24
195.146.132.0/23
195.146.134.0/24
195.146.136.0/21
195.146.145.0/24
195.146.146.0/23
195.146.148.0/22
195.146.152.0/21
195.216.240.0/24
212.5.192.0/19
213.81.128.0/17
213.160.160.0/19

IPv6 prefixes

All 9 prefixes.

2001:678:c14::/48
2001:67c:1314::/48
2001:67c:16c0::/48
2001:67c:1bc4::/48
2001:67c:2cc0::/48
2001:67c:2f9c::/48
2a00:12a8::/29
2a00:6bc0::/40
2a01:5f7::/32

Similar-sized networks in Slovakia

ASNNameIPv4 addresses

AS2607#2 SANET Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET526,080

AS5578#3 AS-BENESTRA SWAN, a.s.314,112

AS15962#4 OSK-DNI Orange Slovensko a.s.261,120

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources