# IP Intelligence Briefing: 81.229.41.66/32
Classification: Moderate Risk β Defensible Traffic
Generated: 2026-06-26
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## Executive Summary
IP 81.229.41.66 is a Swedish mobile network address associated with Telia Company AB (ASN 3301, RIR: RIPE). The IP carries a moderate risk score (50/100) and is classified as a mobile device with no active services or open ports. While not directly identified as malicious, the IP appears in 8 DNSBL listings (2 high-severity) and has been observed with a high-severity blacklist listing on 2026-06-23. No persistent malicious behavior or campaign correlations detected.
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## Ownership and Network Context
| Attribute | Value |
|---|---|
| **Organization** | TELIANET-LIR |
| **ASN** | 3301 |
| **RIR** | RIPE (Europe) |
| **Country** | Sweden (SE) |
| **City** | Jönköping |
| **Mobile Carrier** | Telia (Telia Company AB, MCC: 240, MNC: 01) |
| **Connection Type** | LTE/5G Mobile |
| **IP Classification** | Mobile β No Services (Firewalled) |
BGP routing confirms stable origin (AS3301) with route stability flag set. No anomalous routing patterns observed.
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## Geographic Validation
Geolocation consensus: Jönköping, SE (60.13°N, 18.64°E)
RTT Analysis: Average 110.4ms from probe location, 762km claimed distance. Minimum possible RTT 15.2ms. Geo-validation plausible with 5 probes.
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## DNS and Hostname Resolution
| Signal | Status |
|---|---|
| **PTR Record** | 81-229-41-66-no2450.tbcn.telia.com |
| **Forward Confirmed** | Yes |
| **Hosted Domain** | None |
| **DNSSEC Valid** | Yes |
| **SPF/DMARC** | Present |
DNS associations consistently resolve to Telia internal infrastructure. No spoofing or DNS anomalies detected.
---
## Threat Intelligence Indicators
| Indicator | Status |
|---|---|
| **Risk Score** | 50 (Moderate) |
| **Abuse Confidence** | Not assigned |
| **Known Attacker** | No |
| **Spam Source** | No |
| **Tor Exit Node** | No |
| **Blacklist Count** | 8 total |
| **High-Severity Lists** | 2 |
| **Campaign Correlation** | None |
| **Known Campaigns** | None |
Historical Observation: A high-severity blacklist listing was observed on 2026-06-23T22:24:29. No persistent malicious activity detected. IP not flagged as known attacker.
---
## Neighborhood Assessment
Subnet: 81.229.41.66/24
Abuse Density: 0 (Clean)
Threat Siblings: 0
Risk Classification: Clean
Active Siblings: 0
No neighboring IPs show malicious behavior. This IP operates in isolation within its subnet.
---
## Security Recommendations
Due to the moderate risk score (50) and presence on multiple blacklists, the following firewall rules are recommended:
| Platform | Action |
|---|---|
| **iptables** | `iptables -A INPUT -s 81.229.41.66 -j DROP` |
| **nftables** | `nft add rule inet filter input ip saddr 81.229.41.66 drop` |
| **nginx** | `deny 81.229.41.66;` |
| **pfSense** | `81.229.41.66/32` |
| **Cloudflare WAF** | Block IP (expression: `ip.src eq 81.229.41.66`) |
| **AWS WAF** | `Addresses: [81.229.41.66/32]` |
Note: These recommendations are probabilistic and should be combined with other signals before taking action. Given the mobile network context, consider whitelist exceptions for expected mobile traffic.
---
## Analyst Notes
This IP appears to be a legitimate mobile device address from Telia's Swedish network. The blacklist associations may stem from outbound traffic patterns rather than the IP being a direct attack source. No evidence of command-and-control, spam distribution, or attack participation.
Recommended Action: Monitor but do not block without additional context. If blocking is required, implement at the edge with logging enabled for review.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | TELIANET-LIR |
| ASN | AS3301 |
| Network Name | β |
| CIDR Block | 81.224.0.0/12 |
| RIR | RIPE |
| Country | β |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR | 81-229-41-66-no2450.tbcn.telia.com |
| Forward Confirmed | Yes β FCrDNS verified |
| Forward Hostnames | 81-229-41-66-no2450.tbcn.telia.com |
π DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
βοΈ Network Classification
| Infrastructure | Mobile |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 β Basic operator with some routing infrastructure |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 30% | 2 | 4 |
| routing | 27% | 2 | 3 |
| services | 8% | 1 | 1 |
| ownership | 27% | 3 | 4 |
| reputation | 23% | 1 | 3 |
| geolocation | 32% | 2 | 3 |
| Overall | 24% | 11 | 18 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-07 23:04:36 UTC |
| Last Seen | 2026-06-26 18:11:37 UTC |
| Profile Built | 2026-06-23 22:31:49 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 25 |
Full dossier details are available via our API.