# 51.171.135.55 — IP Intelligence Summary

51.171.135.55 is an IPv4 address announced by AS5466, with approximate network location Navan, Ireland. It belongs to a mobile network with reverse DNS name 51-171-135-55-dynamic.agg2.auv.dbc-mgr.eircom.net. As of November 10, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/51.171.135.55
- Last updated: 2026-11-10

## Ownership

- Organization: Eircom Networks
- Network name: IE-TELECOM-19930301
- Allocated block: 51.171.0.0/16
- ASN: AS5466 (https://ipdebrief.com/asn/5466)
- Regional registry: ARIN
- Registered holder: Eircom Networks
- Routing operator: —
- Network registration country: IE
- Registrant address country: —

## Location

- City: Navan
- Region: Leinster
- Country: Ireland
- Time zone: Europe/Dublin

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

## Network classification

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

- 51-171-135-55-dynamic.agg2.auv.dbc-mgr.eircom.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, "51.171.135.55 IP intelligence", https://ipdebrief.com/51.171.135.55, updated 2026-11-10. Assessments are probabilistic.