Data as of Nov 7, 2026

121.243.40.0/22

No anonymizer space · no proxy exits in 30 days

TATA Communications formerly VSNL is Leading ISP · space held by Tata Communications Limited

Announcement

this exact prefix

RPKI valid

Announced by

AS4755

Type

Business

50% of it

Recent change

New origin Nov 6, 2026

its first announcement on record

Announcements

Less specific

Covering announcements

Prefix	Origin	Type	Proxy exits	Holder	RPKI
121.243.0.0/17 since Jun 2009	AS4755	Business	11	Tata Communications Limited

More specific

Announcements inside

Prefix	Origin	Type	Holder	RPKI
121.243.40.0/24 since Oct 2020	AS4755	Business	Tata Communications Limited
121.243.41.0/24 since Feb 2022	AS4755	Business	Tata Communications Limited

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
Business	512	50%	2
Internet provider	512	50%	1

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS4755

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

121.243.40.0/22

Announcements

Covering announcements

Announcements inside

Composition

Address share

Types across the prefix

Network & registry

AS4755

Covering aggregate above, the prefix's own history below

Routing history

Route origin authorizations

Registration for this announcement

Abuse contact

ROA prefix	ASN	Max len	Anchor	Verdict
121.243.40.0/22	AS4755	/22	APNIC	RPKI valid
121.243.0.0/17	AS4755	/17	APNIC	Too specific