# 73.121.234.123 — IP Intelligence Summary

73.121.234.123 is an IPv4 address announced by AS7922, with approximate network location Greeneville, United States. It belongs to a residential connection with reverse DNS name c-73-121-234-123.hsd1.tn.comcast.net. As of October 11, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/73.121.234.123
- Last updated: 2026-10-11

## Ownership

- Organization: Comcast Cable Communications, LLC
- Network name: KNOXVILLE-CPE-12
- Allocated block: 73.121.0.0/16
- ASN: AS7922 (https://ipdebrief.com/asn/7922)
- Regional registry: ARIN
- Registered holder: Comcast Cable Communications, LLC
- Routing operator: —
- Network registration country: United States
- Registrant address country: —

## Location

- City: Greeneville
- Region: TN
- Country: United States
- Time zone: America/New_York

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

## Network classification

- Infrastructure type: Residential
- Datacenter / hosting: no
- Residential: yes
- 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

- c-73-121-234-123.hsd1.tn.comcast.net
- Forward-confirmed: yes

## 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

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Source: IPDebrief, "73.121.234.123 IP intelligence", https://ipdebrief.com/73.121.234.123, updated 2026-10-11. Assessments are probabilistic.