# 165.21.139.170 — IP Intelligence Summary

165.21.139.170 is an IPv4 address announced by AS3758, with approximate network location Denver, Singapore. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/165.21.139.170
- Last updated: 2026-11-12

## Ownership

- Organization: IRT-SINGNET-SG
- Network name: SINGTEL-NETWORKS-165-21-139-0
- Allocated block: 165.21.139.0/24
- ASN: AS3758 (https://ipdebrief.com/asn/3758)
- Regional registry: ARIN
- Registered holder: IRT-SINGNET-SG
- Routing operator: —
- Network registration country: SG
- Registrant address country: —

## Location

- City: Denver
- Region: US-CO
- Country: Singapore
- Time zone: Asia/Singapore

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

## DNS posture

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

- spf: Not checked
- dmarc: Not checked
- fcrDns: Not checked
- dnssec: Not checked
- caa: Not checked

## Nearby addresses

- 165.21.139.129 (https://ipdebrief.com/165.21.139.129)
- 165.21.139.133 (https://ipdebrief.com/165.21.139.133)
- 165.21.139.166 (https://ipdebrief.com/165.21.139.166)

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Source: IPDebrief, "165.21.139.170 IP intelligence", https://ipdebrief.com/165.21.139.170, updated 2026-11-12. Assessments are probabilistic.