# 38.211.4.77 — IP Intelligence Summary

38.211.4.77 is an IPv4 address operated by AS272345 - Isimac Internet S.A. de C.V., MX (AS272345), with approximate network location Calvillo, Mexico. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.

- Canonical page: https://ipdebrief.com/38.211.4.77
- Last updated: 2026-11-13

## Ownership

- Organization: Cogent Communications, LLC
- Network name: COGENT-A
- Allocated block: 38.0.0.0/8
- ASN: AS272345 (https://ipdebrief.com/asn/272345)
- Regional registry: ARIN
- Registered holder: Cogent Communications, LLC
- Routing operator: AS272345 - Isimac Internet S.A. de C.V., MX
- Network registration country: —
- Registrant address country: United States

## Location

- City: Calvillo
- Region: Aguascalientes
- Country: Mexico
- Time zone: America/Mexico_City

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.

- caa: Not applicable (—)
- spf: Unknown / lookup inconclusive (—)
- dmarc: Unknown / lookup inconclusive (—)
- dnssec: Unknown / lookup inconclusive (77.4.211.38.in-addr.arpa)
- fcrDns: Unknown / lookup inconclusive

## Nearby addresses

- 38.211.4.70 (https://ipdebrief.com/38.211.4.70)
- 38.211.4.78 (https://ipdebrief.com/38.211.4.78)
- 38.211.4.80 (https://ipdebrief.com/38.211.4.80)
- 38.211.4.221 (https://ipdebrief.com/38.211.4.221)

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Source: IPDebrief, "38.211.4.77 IP intelligence", https://ipdebrief.com/38.211.4.77, updated 2026-11-13. Assessments are probabilistic.