AS5603 SIOL-NET Telekom Slovenije, d.d.

SIOL-NET Telekom Slovenije, d.d. · registered in Slovenia

IPv4 addresses781,82440 prefixes · 0.025% of announced IPv4

Rank in Slovenia#1largest network in SI by IPv4 space, of 262 · 29.88% of SI

Rank worldwide#435of 79,396 networks with IPv4

IPv616 x /32 (1,048,576 x /48)21 prefixes

CountrySlovenia272 ASNs registered there

Open AS5603 in ASN lookup Look up an IP in this network (37.18.224.1) All networks in Slovenia

IPv4 prefixes

All 40 prefixes, in address order.

37.18.224.0/20
86.61.0.0/17
89.142.0.0/15
91.195.146.0/23
91.217.126.0/23
95.159.192.0/18
95.176.128.0/17
109.182.0.0/16
149.126.128.0/19
178.58.0.0/16
185.46.140.0/24
185.57.226.0/23
185.58.180.0/22
185.59.24.0/22
188.196.0.0/14
193.77.0.0/20
193.77.16.0/21
193.77.24.0/22
193.77.28.0/23
193.77.32.0/19
193.77.64.0/18
193.77.128.0/17
193.95.192.0/18
193.138.9.0/24
193.189.160.0/19
194.165.96.0/19
195.5.164.0/24
195.88.82.0/23
195.210.192.0/18
195.250.194.0/23
195.250.196.0/22
195.250.200.0/21
195.250.208.0/22
195.250.213.0/24
195.250.214.0/23
212.30.64.0/19
213.229.192.0/19
213.229.224.0/20
213.229.240.0/21
213.250.0.0/18

IPv6 prefixes

All 21 prefixes.

2001:67c:20d8::/48
2a00:ee0::/30
2a00:ee4::/31
2a00:ee6::/32
2a00:ee7:1::/48
2a00:ee7:2::/47
2a00:ee7:4::/46
2a00:ee7:8::/45
2a00:ee7:10::/44
2a00:ee7:20::/43
2a00:ee7:40::/42
2a00:ee7:80::/41
2a00:ee7:100::/40
2a00:ee7:200::/39
2a00:ee7:400::/38
2a00:ee7:800::/37
2a00:ee7:1000::/36
2a00:ee7:2000::/35
2a00:ee7:4000::/34
2a00:ee7:8000::/33
2a02:e20::/29

Similar-sized networks in Slovenia

ASNNameIPv4 addresses

AS2107#2 ARNES-NET ARNES409,344

AS3212#3 TELEMACH Telemach Slovenija d.o.o.350,208

AS21283#4 A1SI-AS A1 Slovenija telekomunikacijske storitve,d.d.325,632

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