Data as of Nov 12, 2026
121.243.99.0/24
No anonymizer space · no proxy exits in 30 daysTATA Communications formerly VSNL is Leading ISP · space held by Tata Communications Limited
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 121.243.98.0/23 since Jul 2007 | AS4755 | Internet provider | Tata Communications Limited | ||
| 121.243.0.0/17 since Jun 2009 | AS4755 | Business | 12 | Tata Communications Limited |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 121.240.0.0/13 | 524,288 | TATACOMM-IN | Tata Communications Limited (ORG-TCL6-AP) · IN | ALLOCATED PORTABLE | — | 4755abuse@ |
| └ 121.243.99.36/30 | 4 | KOTAK_ | JALANDHAR- Leased line KOTAK MAHINDRA BANK LTD. | ASSIGNED NON-PORTABLE | — | 4755abuse@ via TATACOMM-IN |
| └ 121.243.99.40/30 | 4 | KOTAK_ | AMRITSAR- Leased line KOTAK MAHINDRA BANK LTD. | ASSIGNED NON-PORTABLE | — | 4755abuse@ via TATACOMM-IN |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Origin network
AS4755
IN
- Name
- TATA Communications formerly VSNL is Leading ISP
- Type
- Internet provider
- Registered
- May 13, 1996
- Domain
- tatacommunications.com
- Website
- www.tatacommunications.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2007
- Current origin since
- Sep 2007 · 19 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 121.243.98.0/23 | AS4755 | /24 | APNIC | RPKI valid |
| 121.243.0.0/17 | AS4755 | /17 | APNIC | Too specific |
Whois
Registration for this announcement
- Range
- 121.
240. 0. 0/ 13 - Netname
- TATACOMM-IN
- Registrant
- Tata Communications Limited
- Registrant country
- IN
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Dec 8, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- IN
- Delegated
- Aug 14, 2006
- Status
- assigned
Report abuse
Abuse contact
- 4755abuse@
tatacommunications. com - Name
- ABUSE TATACOMMIN
- Handle
- AT1356-AP