# 209.73.183.27 — IP Intelligence Summary

209.73.183.27 is an IPv4 address operated by YAHOO-BF1 - Yahoo Holdings Inc., US (AS26101), with approximate network location New York, United States. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/209.73.183.27
- Last updated: 2026-11-13

## Ownership

- Organization: Yahoo Holdings Inc.
- Network name: INTERNET-BLK-1-AV
- Allocated block: 209.73.160.0/19
- ASN: AS26101 (https://ipdebrief.com/asn/26101)
- Regional registry: ARIN
- Registered holder: Yahoo Holdings Inc.
- Routing operator: YAHOO-BF1 - Yahoo Holdings Inc., US
- Network registration country: United States
- Registrant address country: —

## Location

- City: New York
- Region: US-NY
- Country: United States
- Time zone: America/New_York

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

## Exposed services

- 80/tcp — http
- 443/tcp — https

## DNS posture

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

- caa: Present / verified (yahoo.com)
- spf: Not checked
- dmarc: Not checked
- dnssec: Unknown / lookup inconclusive (27.183.73.209.in-addr.arpa)
- fcrDns: Not checked

## TLS observations

- CN=*.ec.yimg.com, O=Yahoo Holdings Inc., L=New York, S=New York, C=US; port unknown; target —; Historical certificate; current certificate unknown; valid until 2026-12-23T23:59:59.0000000+00:00

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Source: IPDebrief, "209.73.183.27 IP intelligence", https://ipdebrief.com/209.73.183.27, updated 2026-11-13. Assessments are probabilistic.