77.241.128.120
# IP Intelligence Briefing: 77.241.128.120/32
Classification: Low Risk / Legitimate Infrastructure
Date of Analysis: Current session
Risk Score: 0
## Executive Summary
IP address 77.241.128.120 belongs to Erik Blomberg under ASN 44034 (HI3G-CUSTOMER-NET), a mobile carrier network infrastructure. The IP exhibits no active threat indicators, no open services, and maintains a clean reputation profile. The address resolves to a mobile carrier hostname (77.241.128.120.mobile.3.dk) and is properly configured with SPF and DMARC records. No recommended blocking actions are warranted at this time.
## Network Classification
- Organization: Erik Blomberg
- ASN: 44034
- Network Block: 77.241.128.0/21 (RIPE NCC registry)
- Infrastructure Type: Mobile Carrier
- Connection Type: Mobile
- Geolocation: Stockholm, Sweden (with conflicting signals referencing Denmark)
## Threat Assessment
The IP returned a risk score of 0 and reputation classification of "Low Risk." No threat indicators were detected across evaluated threat feeds. The address is not a known attacker, spam source, Tor exit node, proxy, or VPN endpoint. Blacklist analysis returned 0 active listings across 8 monitored DNSBLs.
DNS configuration includes valid SPF and DMARC authentication records. No open ports were detected, indicating the address is firewalled with no active services.
## Historical Observations
Sixteen signal observations were recorded for this address. Ownership data has remained consistent throughout the observation period, with Erik Blomberg identified as the network operator. Some geo-location signals displayed minor inconsistencies, with certain probes reporting Denmark while others report Sweden. These discrepancies are attributed to mobile carrier routing characteristics rather than malicious activity.
## Neighborhood Analysis
Analysis of the 77.241.128.0/24 subnet revealed five neighboring addresses with the following risk distribution:
| IP Address | Risk Score | Classification |
|---|---|---|
| 77.241.128.42 | 15 | Low |
| 77.241.128.43 | 40 | Medium |
| 77.241.128.134 | 40 | Medium |
| 77.241.128.155 | 25 | Low |
| 77.241.128.251 | 0 | Low |
Subnet abuse density is 0. The target IP (77.241.128.120) maintains the lowest risk profile within its immediate neighborhood.
## Relationships
Three relationship entries were identified:
1. DNS Association: 77.241.128.120.mobile.3.dk (mobile carrier hostname)
2. Same Network: HI3G-CUSTOMER-NET
3. DNS Association: 77.241.128.120.mobile.3.dk (duplicate entry)
## Recommended Actions
No firewall rules or blocking actions are recommended. The IP is classified as legitimate mobile carrier infrastructure. Standard logging and monitoring is appropriate.
SOC Analyst Notes: This IP should be allowed through without restrictions. Monitor for any changes in risk profile during routine intelligence cycles. The subnet contains some medium-risk addresses (77.241.128.43, 77.241.128.134) that warrant separate investigation if observed in suspicious traffic patterns.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Erik Blomberg |
| ASN | AS44034 |
| Network Name | HI3G-CUSTOMER-NET |
| CIDR Block | 77.241.128.0/21 |
| RIR | RIPE |
| Country | DK |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | 77.241.128.120.mobile.3.dk |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | 77.241.128.120.mobile.3.dk |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | 2/2 domains |
| DMARC | 2/2 domains |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
| Domains Checked | 2 domains |
☁️ Network Classification
| Infrastructure | Mobile |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS44034 |
| Network Prefix | 77.241.128.0/20 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 28% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 23% | 2 | 2 |
| ownership | 17% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 12% | 2 | 2 |
| Overall | 18% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-07 00:25:01 UTC |
| Last Seen | 2026-09-10 22:27:33 UTC |
| Profile Built | 2026-09-10 23:07:45 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 34 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 77.241.128.120
Who owns the IP address 77.241.128.120?
77.241.128.120 is registered to Erik Blomberg. The address falls within the 77.241.128.0/21 network block. Registration is held at RIPE.
Where is 77.241.128.120 located?
Geolocation data places 77.241.128.120 in Stockholm. The local time zone is Europe/Copenhagen. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 77.241.128.120 malicious or safe?
77.241.128.120 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 77.241.128.120?
The reverse DNS (PTR) record for 77.241.128.120 is 77.241.128.120.mobile.3.dk. This hostname is forward-confirmed, meaning it resolves back to the same address.
Is 77.241.128.120 a VPN, proxy, or data center address?
77.241.128.120 is classified as a mobile network based on network ownership and behavioural analysis.