Data as of Nov 4, 2026
61.17.4.0/22
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 | Holder | RPKI |
|---|---|---|---|---|
| 61.17.0.0/21 since Nov 2008 | AS17908 | Residential | Tata Communications Limited | |
| 61.17.0.0/16 since Oct 2022 | AS4755 | Business | Tata Communications Limited |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 61.17.4.0/24 since Jul 2019 | AS4755 | Residential | Tata Communications Limited | |
| 61.17.5.0/24 since Jul 2019 | AS4755 | Residential | Tata Communications Limited | |
| 61.17.6.0/24 since Jul 2019 | AS4755 | Business | 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 |
|---|---|---|---|---|---|---|
| 61.17.0.0/16 | 65,536 | TATACOMM-IN | Tata Communications Limited (ORG-TCL6-AP) · IN | ALLOCATED PORTABLE | — | [email protected] |
| └ 61.17.0.0/21 | 2,048 | RBU_STATIC-CHENNAI | Used for Static Broadband Customers in Chennai | ASSIGNED NON-PORTABLE | — | [email protected] via TATACOMM-IN |
| └ 61.17.6.0/24 | 256 | TataBroadBand-Mumbai | VSNL Mumbai - Leased line TataBroadBand-Mumbai | ASSIGNED NON-PORTABLE | — | [email protected] via RBU_STATIC-CHENNAI |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
1,024 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 768 | 75% | 3 | |
| Business | 256 | 25% | 1 |
Network & registry
Registry
Holder
- Organization
- Tata Communications Limited
- Handle
- ORG-TCL6-AP
- Range
- 61.17.0.0/16
- Registration type
- ALLOCATED PORTABLE
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
- Jun 2006
- Current origin since
- Apr 2026 · 6 mo
- Origin networks
- 2
- Last change of origin
- Mar 2011
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 61.17.4.0/22 | AS4755 | /22 | APNIC | RPKI valid |
| 61.17.0.0/21 | AS17908 | /21 | APNIC | Another network |
| 61.17.0.0/16 | AS4755 | /16 | APNIC | Too specific |
Whois
Registration for this announcement
- Range
- 61.17.0.0/21
- Netname
- RBU_STATIC-CHENNAI
- Registrant
- Used for Static Broadband Customers in Chennai
- Registrant country
- IN
- Organization
- Used for Static Broadband Customers in Chennai
- Org country
- IN
- Type
- ASSIGNED NON-PORTABLE
- Created
- Not stated by the registry
- Updated
- Sep 4, 2008
- Maintainer
- MAINT-VSNL-AP
- RIR
- APNIC
- Country
- IN
- Delegated
- Jun 12, 2002
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- ABUSE TATACOMMIN
- Handle
- AT1356-AP