Data as of Nov 7, 2026
139.181.31.0/24
No anonymizer space · no proxy exits in 30 daysTATA Communications formerly VSNL is Leading ISP · space held by Siemens Industry Software Inc.
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
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2019
- Current origin since
- Sep 2019 · 7.2 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 139.
181. 0. 0/ 16 - Netname
- SIEMENS-DISW-11
- Registrant
- Siemens Industry Software Inc.
- Organization
- Siemens Industry Software Inc. (SIS-377)
- Org address
- 8005 SW Boeckman Road, Wilsonville, OR, 97070-7777
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-139-181-0-0-1
- Parent
- NET-139-0-0-0-0
- Created
- Mar 26, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 26, 1990
- Status
- assigned
Report abuse
Abuse contact
- gne-arin-abuse.
sisw@ siemens. com - Name
- Siemens Industry Software Inc Abuse
- Phone
- +1-503-685-7000
- Handle
- SISA1-ARIN