RETN Limited
Data as of 2026-08-23
BGP inherited
Cluster stats
| Netblocks | 142 · 52,999 IPv4 addresses |
| IPv6 | 31 prefixes (largest 2402:c680::/32) |
| Registered in | Russia (55) · United Kingdom (27) · United States (10) · Hong Kong (9) · Japan (4) · Ireland (2) |
| All fragments | 192 blocks across 21 clusters |
| Cluster ID | 226913814 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 36 shared RIR contact/maintainer handles |
| Registry names | 13 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
9 weekly snapshots · JSON
158
+4 netblocks since 2026-07-05
2026-07-05
peak 158
2026-08-23
IP Ranges (142)
showing 50 of 142 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 5.253.168.0/22 | RETN Limited | BGP | ANNOUNCED | ● high |
| 27.111.229.103/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 36.255.57.207/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 37.49.236.17/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 43.246.132.0/22 | RETN (Hong Kong) Limited | APNIC | ASSIGNED PORTABLE | ● high |
| 43.246.132.0/23 | RETN (Hong Kong) Limited | BGP | ANNOUNCED | ● high |
| 43.246.134.0/23 | RETN (Hong Kong) Limited | BGP | ANNOUNCED | ● high |
| 43.246.135.0/24 | RETN (Hong Kong) Limited | BGP | ANNOUNCED | ● high |
| 80.81.192.73/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 80.249.209.216/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 87.245.216.0/21 | RETN Limited | BGP | ANNOUNCED | ● high |
| 91.206.52.143/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 101.203.88.32/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 103.194.236.0/22 | RETN (Hong Kong) Limited | BGP | ANNOUNCED | ● high |
| 103.231.152.156/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 139.45.198.0/23 | RETN Limited | BGP | ANNOUNCED | ● high |
| 139.45.216.0/23 | RETN Limited | BGP | ANNOUNCED | ● high |
| 149.255.128.0/22 | RETN Limited | BGP | ANNOUNCED | ● high |
| 163.128.219.0/24 | RETN Co., Ltd. | BGP | ANNOUNCED | ● high |
| 185.6.36.117/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 185.79.175.176/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 193.149.1.17/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 193.178.185.64/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 193.188.137.153/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 193.201.28.88/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 193.203.0.150/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 194.53.172.71/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 194.68.123.157/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 194.68.128.157/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 194.88.240.81/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 195.66.224.193/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 198.32.160.182/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 198.32.243.145/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 206.81.80.150/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 210.173.176.139/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 217.28.48.0/20 | RETN Limited | BGP | ANNOUNCED | ● high |
| 217.29.66.116/32 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:504:0:6::9002:1/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:504:1::a500:9002:1/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:504:16::232a/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8::232a:0:1/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:1::a500:9002:1/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:4::232a:1/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:b:100:1d1:a5d0:9002:116/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:d:fe::157/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:d:ff::157/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:f::68/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:f:1::68/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:10::9002/128 | RETN | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:18::117/128 | RETN | PEERINGDB | ASSIGNED | ● high |
IPv6 ranges (31)
showing the 15 largest allocationsDomains hosted in this network
what's this?Customer-delegated space
how is this classified?
Unclassified
107 (75.4%)
Operator infrastructure (named)
51 (35.9%)
Network trust
what's this?
RPKI hygiene: B
how networks compare →
91.1%
of checked blocks have valid RPKI ROA coverage
(144 of 158)
Possible discrepancies (3)
These blocks are registered to RETN Limited but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 45.39.107.0/24 /24 | authorized for AS50131 — Spartan Host Ltd |
| 45.39.108.0/24 /24 | authorized for AS50131 — Spartan Host Ltd |
| 104.233.6.0/24 /24 | authorized for AS207359 — Tochka Network LLC |
NIC Handles
APNIC-HM
AR1534-AP
AR886-AP
AS133405
AS134518
AS207359
AS209447
AS210203
AS214455
AS25462
AS28886
AS50131
+24 more