47.31.90.100📋 Copy

# IP Intelligence Briefing: 47.31.90.100

## Executive Summary

The IP address 47.31.90.100/32 is associated with Reliance Jio Infocomm Limited (ASN 55836) and presents a moderate risk profile (score: 50). The address operates within a mobile network infrastructure in Giridih, Jharkhand, India, and is classified as a mobile device connection (LTE/5G technology).

## Network Classification and Ownership

The address belongs to the 47.31.0.0/16 CIDR block under RELIANCEJIO-IN. The control plane indicates origin ASN 55836 with a 30-hop traceroute path, though route stability was flagged as false. DNSSEC validation is valid, and the address is listed on 2 of 8 total DNSBLs.

## Geolocation and Infrastructure

Geolocation data places the IP in Giridih, Jharkhand, India (coordinates: 24.18°N, 86.31°E). The mobile carrier is identified as Jio (Reliance Jio Infocomm Ltd., MCC 405, MNC 872) operating on LTE/5G technology. No PTR record exists for this address, and no reverse DNS resolution is confirmed.

## Threat Assessment

The IP carries a moderate risk score of 50 with no confirmed threat indicators. No known attacker flags, spam source indicators, or Tor exit node classification were detected. The address shows no active threat feeds or known campaign associations. Abuse confidence score was not available in the profile data.

## Service and DNS Analysis

No open ports were detected on the address. The services enumeration shows the address as "Firewalled / No Services." DNS analysis revealed no forward resolution, no hosted domains, and no email authentication records (SPF, DMARC). The address does not appear to operate any public-facing services.

## Neighborhood Analysis

The /24 subnet (47.31.90.0/24) contains minimal activity with only 1 sibling IP observed (47.31.90.194) at a low risk score of 25. Subnet abuse density was recorded at 0, indicating low concentration of malicious activity within the neighborhood.

## Historical Observations

Twelve signal observations were recorded, with the most recent activity dated 2026-07-30. Historical data includes traceroute probes (30 hops, 21 timed out), DNSBL listing activity (8 total lists, 2 with high severity), and ASN/location observations. No ownership changes or persistent malicious activity were detected over the observation period.

## Recommended Security Actions

Based on the moderate risk profile, the following firewall rules are recommended:

iptables:

```

iptables -A INPUT -s 47.31.90.100 -j DROP

```

nftables:

```

nft add rule inet filter input ip saddr 47.31.90.100 drop

```

nginx:

```

deny 47.31.90.100;

```

Cloudflare WAF:

```json

{"description":"Block 47.31.90.100 — IPDebrief risk score 50","action":"block","filter":{"expression":"ip.src eq 47.31.90.100"}}

```

AWS WAF:

```json

{"Addresses":["47.31.90.100/32"],"Description":"IPDebrief risk 50"}

```

## Analyst Notes

This IP addresses a mobile device within Reliance Jio's infrastructure. While the moderate risk score suggests caution, the absence of confirmed threat indicators, open ports, and active abuse patterns supports defensive blocking rather than active hunting. The mobile connection type and lack of reverse DNS records are consistent with residential/mobile user traffic. Monitoring should continue for any escalation in threat indicators or DNSBL listings.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.