# 81.193.31.237 — IP Intelligence Summary

81.193.31.237 is an IPv4 address operated by MEO-RESIDENCIAL - MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A., PT (AS3243), with approximate network location Estoril, Portugal. It belongs to a mobile network. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/81.193.31.237
- Last updated: 2026-11-13

## Ownership

- Organization: TELEPAC-MNT
- Network name: MEO-BROADBAND
- Allocated block: 81.193.0.0/18
- ASN: AS3243 (https://ipdebrief.com/asn/3243)
- Regional registry: RIPE
- Registered holder: TELEPAC-MNT
- Routing operator: MEO-RESIDENCIAL - MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A., PT
- Network registration country: PT
- Registrant address country: —

## Location

- City: Estoril
- Region: Lisbon
- Country: Portugal
- Time zone: Europe/Lisbon

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

## DNS posture

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

- caa: Present / verified (telepac.pt)
- spf: Not checked
- dmarc: Not checked
- dnssec: Unknown / lookup inconclusive (237.31.193.81.in-addr.arpa)
- fcrDns: Not checked

---

Source: IPDebrief, "81.193.31.237 IP intelligence", https://ipdebrief.com/81.193.31.237, updated 2026-11-13. Assessments are probabilistic.