Data as of Nov 9, 2026
203.208.237.112/28
No anonymizer space · no proxy exits in 30 daysSingNet · space held by Singapore Telecommunications Ltd
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 203.208.128.0/17 since May 2005 | AS7473 | Unknown | 3 |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 203.208.224.0/19 | 8,192 | SINGTEL-EXPAN-SIN-SG | Singapore Telecommunications Ltd (ORG-STL16-AP) · SG | ALLOCATED PORTABLE | Sep 4, 2008 | leonkoh@ |
| └ 203.208.237.112/28 | 16 | HEIDELBERG | HeidelbergCement AG | ASSIGNED NON-PORTABLE | — | leonkoh@ |
Network & registry
Announced by
Covering announcement 203.208.224.0/19
- Prefix
- 203.208.224.0/19
- Announced by
- AS3758 SingNet
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- SINGTEL-EXPAN-SIN-SG
- Registrant
- Singapore Telecommunications Ltd
- RIR
- APNIC
Origin network
AS3758
SG
- Name
- SingNet
- Type
- Internet provider
- Registered
- Aug 1, 2002
- Domain
- singnet.com.sg
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
203.208.224.0/19
Routing history
- Pattern
- Reactivated
- First seen
- May 2009
- Current origin since
- Apr 2023 · 3.6 yr
- Origin networks
- 2
- Last change of origin
- Apr 2023
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.208.224.0/19 | AS3758 | /24 | APNIC | RPKI valid |
| 203.208.224.0/19 | AS9911 | /19 | APNIC | Another network |
IRR
Route objects on 203.208.224.0/19
Whois
Registration for this announcement
- Range
- 203.
208. 224. 0/ 19 - Netname
- SINGTEL-EXPAN-SIN-SG
- Registrant
- Singapore Telecommunications Ltd
- Registrant country
- SG
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jan 14, 2021
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- SG
- Delegated
- May 22, 2001
- Status
- assigned
Report abuse
Abuse contact
- leonkoh@
singtel. com - Name
- ABUSE SINGTELEXPANSINSG
- Handle
- AS2995-AP