AS23855 SingAREN Open Exchange 1 (GSW)
AS23855 is operated by SingAREN Open Exchange 1 (GSW) and registered with APNIC (SG) since 2005-08-24.
It announces 2 IPv4 and 1 IPv6 prefixes, 100% of them RPKI valid.
RIPE RIS sees 18 upstream and peer networks and 19 downstream networks next to it.
PeeringDB lists it as an Educational/Research network at 3 internet exchanges and 1 facility. Its peering policy is open.
| Name | SingAREN Open Exchange 1 (GSW) |
|---|---|
| Registry handle | SINGAREN-GIX-AS-AP |
| Registry (RIR) | APNIC |
| Country | Singapore (SG) |
| Delegated on | 2005-08-24 |
| Network type | Educational/Research, Asia Pacific |
| Peering policy | Open |
| IRR as-set | AS23855:AS-LOCAL-INSTITUTION |
| Prefixes (IPv4 / IPv6) | 2 / 1 |
| RPKI valid | 100% (3 / 3) |
| Upstreams and peers | 18 |
| Downstream networks | 19 |
| Website | singaren.net.sg |
Routing health
- AS23855 announces 2 IPv4 and 1 IPv6 prefixes.
- All 3 announced prefixes are RPKI valid.
- 18 upstreams and peers, 19 downstream networks seen.
For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.
Announced prefixes 3
- 203.30.38.0/24
- 203.30.39.0/24
- 2001:df0:21a::/48
Upstreams and peers 18
The networks RIPE RIS sees next to AS23855 in BGP paths, the most visible first.
- AS4637 Telstra (International)
- AS136968 Singapore Advanced Research and Education Network (SingAREN…
- AS6939 Hurricane Electric
- AS7660 APAN
- AS1103 SURF
- AS20965 GEANT R&E
- AS134148 SingAREN Open Exchange 2 (SG3)
- AS24490
- AS35280 F5 Inc.
- AS9264 Academia Sinica Network(ASNet)
- AS23864 Singapore Advanced Research and Education Network (SingAREN…
- AS23815 JPIX Route Servers
Peering
Peering policy: Open. Suggested max-prefix limits: 10,000 IPv4, 7,500 IPv6. PeeringDB record
| Exchange | Ports | Speed | Route server |
|---|---|---|---|
| JPIX TOKYO | 1 | 100G | Yes |
| SGIX: Peering LAN | 1 | 10G | Yes |
| Facility | City | Country |
|---|---|---|
| Global Switch Singapore | Singapore | SG |
More about AS23855
Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-12 19:23 UTC. The country is where the AS number was registered, not necessarily where the network operates.