System NET Line

Data as of 2026-09-20
BGP inherited
This organisation
Netblocks111 · 84,380 IPv4 addresses
IPv6 17 prefixes (largest 2a00:e8c0::/29)
Registered in Czechia (27) · GE (24) · France (18) · Italy (15) · BA (7) · Germany (4)
Record ID240762210
RegistryAPNIC
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 50 shared RIR contact/maintainer handles
Registry names 32 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (111)

⬇ export CSV
CIDR Org name Registry Status Confidence
37.49.232.25/32 System-Net SAS PEERINGDB ASSIGNED ● high
37.49.232.32/32 System-Net SAS PEERINGDB ASSIGNED ● high
37.49.237.203/32 System-Net SAS PEERINGDB ASSIGNED ● high
62.212.32.0/20 System Net Ltd BGP ANNOUNCED ● high
62.212.32.0/19 System Net Ltd BGP ANNOUNCED ● high
62.212.48.0/20 System Net Ltd BGP ANNOUNCED ● high
77.104.194.0/24 System NET Line RIPE ASSIGNED PA ● high
77.104.210.0/24 System NET Line RIPE ASSIGNED PA ● high
77.104.216.0/24 System NET Line RIPE ASSIGNED PA ● high
77.104.223.0/24 System NET Line RIPE ASSIGNED PA ● high
77.104.240.0/24 System NET Line RIPE ASSIGNED PA ● high
77.104.245.0/24 System NET Line RIPE ASSIGNED PA ● high
85.118.96.0/19 System Net Ltd BGP ANNOUNCED ● high
85.118.96.0/22 System Net Ltd BGP ANNOUNCED ● high
85.118.123.0/24 System Net Ltd BGP ANNOUNCED ● high
93.186.208.0/20 System Net Ltd BGP ANNOUNCED ● high
93.186.208.0/21 System Net Ltd BGP ANNOUNCED ● high
93.186.216.0/21 System Net Ltd BGP ANNOUNCED ● high
94.138.116.0/22 System NET Line RIPE ASSIGNED PA ● high
94.138.120.0/24 System NET Line RIPE ASSIGNED PA ● high
94.138.121.0/24 System NET Line RIPE ASSIGNED PA ● high
94.138.122.0/24 System NET Line RIPE ASSIGNED PA ● high
94.138.123.0/24 System NET Line RIPE ASSIGNED PA ● high
95.137.128.0/17 System Net Ltd BGP ANNOUNCED ● high
95.137.128.0/18 System Net Ltd BGP ANNOUNCED ● high
95.137.192.0/18 System Net Ltd BGP ANNOUNCED ● high
176.74.64.0/19 System Net Ltd BGP ANNOUNCED ● high
176.74.64.0/18 System Net Ltd BGP ANNOUNCED ● high
176.74.96.0/19 System Net Ltd BGP ANNOUNCED ● high
185.1.47.1/32 System-Net SAS PEERINGDB ASSIGNED ● high
185.23.48.0/23 System Net Ltd BGP ANNOUNCED ● high
185.23.48.0/22 System Net Ltd BGP ANNOUNCED ● high
185.23.50.0/23 System Net Ltd BGP ANNOUNCED ● high
185.73.100.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.101.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.102.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.103.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.104.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.105.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.106.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.107.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.108.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.109.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.110.0/24 System NET Line RIPE ASSIGNED PA ● high
185.73.111.0/24 System NET Line RIPE ASSIGNED PA ● high
185.159.60.0/24 SYSTEM SRL BGP ANNOUNCED ● high
185.159.61.0/24 SYSTEM SRL BGP ANNOUNCED ● high
185.159.62.0/24 SYSTEM SRL BGP ANNOUNCED ● high
185.159.63.0/24 SYSTEM SRL BGP ANNOUNCED ● high
185.167.184.0/23 System NET Line RIPE ASSIGNED PA ● high
185.167.186.0/24 System NET Line RIPE ASSIGNED PA ● high
185.167.187.0/25 System NET Line RIPE ASSIGNED PA ● high
185.167.187.128/25 System NET Line RIPE ASSIGNED PA ● high
2001:7f8:36::ec0b:0:1/128 System-Net SAS PEERINGDB ASSIGNED ● high
2001:7f8:54::1:203/128 System-Net SAS PEERINGDB ASSIGNED ● high
2001:7f8:54:5::25/128 System-Net SAS PEERINGDB ASSIGNED ● high
2001:7f8:54:5::32/128 System-Net SAS PEERINGDB ASSIGNED ● high
2a00:e8c0::/29 System Net Ltd BGP ANNOUNCED ● high
80.240.107.0/24 System-Net Sas BGP ANNOUNCED ● medium
185.64.128.0/22 System-Net Sas BGP ANNOUNCED ● medium
185.64.128.0/24 System-Net Sas BGP ANNOUNCED ● medium
185.64.129.0/24 System-Net Sas BGP ANNOUNCED ● medium
185.64.130.0/24 System-Net Sas BGP ANNOUNCED ● medium
185.64.131.0/24 System-Net Sas BGP ANNOUNCED ● medium
185.87.236.0/24 System-Net Sas BGP ANNOUNCED ● medium
194.5.183.0/24 System-Net Sas BGP ANNOUNCED ● medium
2a03:14a0::/32 System-Net Sas BGP ANNOUNCED ● medium
80.16.87.32/28 SYSTEM-B RIPE ASSIGNED PA ● low
80.16.87.48/28 SYSTEM-B RIPE ASSIGNED PA ● low
80.16.181.0/28 SYSTEM--LINE RIPE ASSIGNED PA ● low
80.18.34.176/28 NET-SYSTEM RIPE ASSIGNED PA ● low
80.22.95.32/29 SYSTEM-SRL RIPE ASSIGNED PA ● low
80.240.107.0/25 System-Net Sas RIPE ASSIGNED PA ● low
81.115.152.64/29 SYSTEM-S-R-L RIPE ASSIGNED PA ● low
81.219.148.0/24 Net_System-NET RIPE ASSIGNED PA ● low
83.65.74.192/28 System-One RIPE ASSIGNED PA ● low
91.151.124.48/29 SYSTEM_ALU RIPE ASSIGNED PA ● low
92.46.51.188/30 SYSTEM RIPE ASSIGNED PA ● low
95.167.15.216/30 SYSTEM_NET RIPE ASSIGNED PA ● low
103.231.254.0/24 System APNIC ALLOCATED NON-PORTABLE ● low
109.2.181.176/28 SYSTEM-X RIPE ASSIGNED PA ● low
156.54.4.96/29 SYSTEM_LINE RIPE LEGACY ● low
156.54.4.104/29 SYSTEM_LINE RIPE LEGACY ● low
185.66.179.0/28 NET-AS-SYSTEM-GmbH RIPE ASSIGNED PA ● low
185.66.179.192/28 NET-AS-System-GmbH RIPE ASSIGNED PA ● low
185.125.121.0/24 System-IP RIPE ASSIGNED PA ● low
185.125.122.0/24 System-IP RIPE ASSIGNED PA ● low
185.125.123.0/24 System-IP RIPE ASSIGNED PA ● low
185.159.60.0/22 System S.r.l. RIPE ALLOCATED PA ● low
185.202.76.0/24 System-IP RIPE ASSIGNED PA ● low
185.202.77.0/24 System-IP RIPE ASSIGNED PA ● low
185.202.78.0/24 System-IP RIPE ASSIGNED PA ● low
185.202.79.0/24 System-IP RIPE ASSIGNED PA ● low
193.59.54.0/25 NET-System RIPE ASSIGNED PA ● low
194.224.67.136/29 SYSTEM RIPE ASSIGNED PA ● low
195.7.190.0/24 SYSTEM RIPE ASSIGNED PA ● low
195.124.128.0/24 SYSTEM RIPE ASSIGNED PA ● low
212.48.146.144/28 SYSTEM-NET RIPE ASSIGNED PA ● low
212.210.187.64/26 NET-SYSTEM RIPE ASSIGNED PA ● low
217.222.231.96/28 SYSTEM-SRL RIPE ASSIGNED PA ● low
2001:1a0a:8010:d4::/64 SYSTEM_C RIPE ASSIGNED ● low
2001:1a0a:8010:d5::/64 SYSTEM_C RIPE ASSIGNED ● low
2a00:2381:1f00::/48 SYSTEM-Q RIPE AGGREGATED-BY-LIR ● low
2a01:4f8:a0:53e8::/64 SYSTEM-LINE RIPE ASSIGNED ● low
2a01:4f9:4a:1d09::/64 SYSTEM-LINE-SRL RIPE ASSIGNED ● low
2a01:4f9:6a:1514::/64 SYSTEM-LINE-SRL RIPE ASSIGNED ● low
2a02:b98:0:115c::/62 SYSTEM-TEC-NET3 RIPE ASSIGNED ● low
2a02:2808:5201::/48 SYSTEM-V6 RIPE ALLOCATED-BY-LIR ● low
2a03:14a0:1::/48 System-Net Sas RIPE ASSIGNED ● low
2a03:14a0:3::/48 System-Net Sas RIPE ALLOCATED-BY-LIR ● low
2a14:5b40::/29 System S.r.l. RIPE ALLOCATED-BY-RIR ● low

IPv6 ranges (17)

CIDR
2a00:e8c0::/29
2a14:5b40::/29
2a03:14a0::/32
2a00:2381:1f00::/48
2a02:2808:5201::/48
2a03:14a0:1::/48
2a03:14a0:3::/48
2a02:b98:0:115c::/62
2001:1a0a:8010:d4::/64
2001:1a0a:8010:d5::/64
2a01:4f8:a0:53e8::/64
2a01:4f9:4a:1d09::/64
2a01:4f9:6a:1514::/64
2001:7f8:36::ec0b:0:1/128
2001:7f8:54:5::25/128
2001:7f8:54:5::32/128
2001:7f8:54::1:203/128

Footprint over time

13 weekly snapshots · JSON
123 -3 netblocks since 2026-07-05
2026-07-05 peak 128 2026-09-20

Other domains hosted in this network

what's this?
modelforum.cz

Customer-delegated space

how is this classified?
Unclassified 115 (103.6%)
Operator infrastructure (named) 8 (7.2%)

Network trust

what's this?
RPKI hygiene: C how networks compare →
61.8% of checked blocks have valid RPKI ROA coverage (76 of 123)
Wholesale/transit re-announcements (33)

These blocks are registered to System NET Line but cryptographically authorized across 6 different networks — typical for a large wholesale or transit carrier whose address space is substantially re-announced by downstream customers under their own ASNs, not individually noteworthy.

2a00:2381:1f00::/48 /48 authorized for AS2856 — British Telecommunications Limited
94.138.116.0/22 /22 authorized for AS201476 — ISP Alliance a.s.
185.167.184.0/23 /23 authorized for AS201476 — ISP Alliance a.s.
81.219.148.0/24 /24 authorized for AS12741 — Netia SA
77.104.245.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
77.104.210.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
77.104.216.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
94.138.122.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
94.138.120.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
94.138.123.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
185.73.100.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
185.73.101.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
185.73.102.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
185.73.103.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
185.73.104.0/24 /24 authorized for AS201476 — ISP Alliance a.s.
+18 more — see the REST API

NIC Handles

AL1665-AP ALTITUDETELECOM-MNT AS34797 AS50394 AS60427 AS60427 BTNET-MNT COPROSYS-MNT DUMY-RIPE DUMY-RIPE EGRISI-MNT EGRISI-MNT +38 more