# 203.129.135.231 — IP Intelligence Summary

203.129.135.231 is an IPv4 address operated by VOCUS-BACKBONE-AS - Vocus Connect International Backbone, AU (AS4826), with approximate network location Sydney, Australia. Its reverse DNS name is 203-129-135-231.sta.ip.vocus.au. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/203.129.135.231
- Last updated: 2026-11-13

## Ownership

- Organization: IRT-VOCUS-AU
- Network name: M2-DODO-AU
- Allocated block: 203.129.128.0/20
- ASN: AS4826 (https://ipdebrief.com/asn/4826)
- Regional registry: APNIC
- Registered holder: IRT-VOCUS-AU
- Routing operator: VOCUS-BACKBONE-AS - Vocus Connect International Backbone, AU
- Network registration country: AU
- Registrant address country: —

## Location

- City: Sydney
- Region: NSW
- Country: Australia
- Time zone: Australia/Sydney

Approximate network location; registration and certificate addresses are not server-location evidence.

## Network classification

- Infrastructure type: —
- Datacenter / hosting: no
- Residential: no
- Mobile: no
- Anycast: Unverified (not proof of unicast)
- Tor exit node: no
- VPN: no
- Proxy: no

## Risk assessment

- Assessment: Low Risk (0/100)
- Blocklist listings: 0
- Suspicious activity indicators: no
- Spam source: no

## Reverse DNS

- 203-129-135-231.sta.ip.vocus.au
- Forward-confirmed: yes

## DNS posture

Mail authentication and CAA are optional domain policies, not IP-wide requirements.

- caa: Unknown / lookup inconclusive (vocus.au)
- spf: Unknown / lookup inconclusive (vocus.au)
- dmarc: Unknown / lookup inconclusive (vocus.au)
- dnssec: Unknown / lookup inconclusive (231.135.129.203.in-addr.arpa)
- fcrDns: Unknown / lookup inconclusive (203-129-135-231.sta.ip.vocus.au)

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Source: IPDebrief, "203.129.135.231 IP intelligence", https://ipdebrief.com/203.129.135.231, updated 2026-11-13. Assessments are probabilistic.