SingTel Optus Pty Ltd
Cluster stats
| Netblocks | 941 |
| All fragments | 4,841 blocks across 3,850 clusters |
| Cluster ID | 191494081 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 100 shared RIR contact/maintainer handles |
| Registry names | 19 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
IP Ranges (941)
showing 50 of 941 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 1.40.0.0/14 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.40.0.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.40.64.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.40.128.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.40.192.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.41.0.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.41.64.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.41.128.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.41.192.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.42.0.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.42.64.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.42.128.0/17 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.43.0.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.43.64.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.43.128.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.43.192.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.44.0.0/16 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.44.0.0/21 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.44.24.0/21 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.44.48.0/21 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.44.160.0/23 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.44.162.0/23 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.44.164.0/23 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 1.44.166.0/23 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 27.109.104.0/24 | SINGTEL-ALATUM1-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 27.109.105.0/24 | SINGTEL-ALATUM1-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 27.109.106.0/24 | SINGTEL-ALATUM1-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 27.109.107.0/24 | SINGTEL-ALATUM1-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 42.61.104.80/29 | SINGTEL-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 42.61.111.72/29 | SINGTEL-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 42.61.113.16/28 | SINGTEL-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 42.61.113.96/29 | SINGTEL-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 42.61.113.112/29 | SINGTEL-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 42.61.114.32/28 | SINGTEL-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 42.61.117.240/28 | SINGTEL-SG | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 43.247.72.0/24 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.2.0.0/15 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.3.0.0/17 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.3.128.0/17 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.0.0/12 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.0.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.64.0/18 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.128.0/20 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.144.0/20 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.160.0/20 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.176.0/20 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.192.0/20 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.208.0/21 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.216.0/21 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
| 49.176.224.0/20 | SingTel Optus Pty Ltd | BGP | ANNOUNCED | ● high |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
84.5%
of checked blocks have valid RPKI ROA coverage
(795 of 941)
Wholesale/transit re-announcements (19)
These blocks are registered to SingTel Optus Pty Ltd 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.
| 118.201.16.0/20 /20 | authorized for AS9255 — Singapore Telecom, ConnectPlus |
| 118.201.12.0/22 /22 | authorized for AS9255 — Singapore Telecom, ConnectPlus |
| 203.126.129.0/24 /24 | authorized for AS3758 — SingNet Pte Ltd |
| 203.17.138.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
| 202.165.128.0/24 /24 | authorized for AS4845 — Singapore Telecom Taiwan Ltd |
| 202.165.129.0/24 /24 | authorized for AS4845 — Singapore Telecom Taiwan Ltd |
| 116.12.253.0/24 /24 | authorized for AS3758 — SingNet Pte Ltd |
| 203.126.133.0/24 /24 | authorized for AS9255 — Singapore Telecom, ConnectPlus |
| 202.83.192.0/24 /24 | authorized for AS17888 — Singapore Telecom Hong Kong Ltd |
| 27.109.104.0/24 /24 | authorized for AS132804 — Singapore Telecommunications Limited |
| 27.109.105.0/24 /24 | authorized for AS132804 — Singapore Telecommunications Limited |
| 27.109.106.0/24 /24 | authorized for AS132804 — Singapore Telecommunications Limited |
| 27.109.107.0/24 /24 | authorized for AS132804 — Singapore Telecommunications Limited |
| 223.130.0.0/24 /24 | authorized for AS132805 — Singapore Telecommunications Limited |
| 223.130.1.0/24 /24 | authorized for AS132805 — Singapore Telecommunications Limited |
+4 more — see the REST API
NIC Handles
AM616-AP
AMH8-AP
AO399-AP
APNIC-HM
ARS2-AP
ARS2-AP
AS10128
AS10150
AS10218
AS10221
AS17461
AS17719
+88 more