Data as of Nov 13, 2026
203.153.37.2/31
No anonymizer space · no proxy exits in 30 daysRailTel Corporation of India Ltd
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.153.32.0/20 since Aug 2016 | AS24186 | Internet provider | 36 4 always on | RailTel Corporation of India Ltd. |
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 |
|---|---|---|---|---|---|---|
| 203.153.32.0/20 | 4,096 | RAILTEL-IN | RailTel Corporation of India Ltd. (ORG-RCOI1-AP) · IN | ALLOCATED PORTABLE | — | ipadmin@ |
| └ 203.153.37.2/31 | 2 | ICA-IN | ICA (Institute Computer Accountants) | ASSIGNED NON-PORTABLE | — | abuse@ |
Network & registry
Announced by
Covering announcement 203.153.37.0/24
- Prefix
- 203.153.37.0/24
- Announced by
- AS24186 RailTel Corporation of India Ltd
- Type
- Internet provider
- RPKI
- RPKI valid
- Netname
- RAILTEL-IN
- Registrant
- RailTel Corporation of India Ltd.
- RIR
- APNIC
Origin network
AS24186
IN
- Name
- RailTel Corporation of India Ltd
- Type
- Internet provider
- Registered
- Oct 28, 2005
- Domain
- railtelindia.com
- Website
- www.railtelindia.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
203.153.37.0/24
Routing history
- Pattern
- Stable
- First seen
- Jun 2006
- Current origin since
- Jun 2006 · 20 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.153.37.0/24 | AS24186 | /24 | APNIC | RPKI valid |
| 203.153.32.0/20 | AS24186 | /20 | APNIC | Too specific |
Whois
Registration for this announcement
- Range
- 203.
153. 32. 0/ 20 - Netname
- RAILTEL-IN
- Registrant
- RailTel Corporation of India Ltd.
- Registrant country
- IN
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Aug 11, 2025
- Maintainer
- MAINT-IN-IRINN
- RIR
- APNIC
- Country
- IN
- Delegated
- Aug 24, 2005
- Status
- assigned
Report abuse
Abuse contact
- ipadmin@
railtel. in - Name
- Network Administrator
- Handle
- NA1011-AP