AS31641
Atlas Communications (NI) Ltd
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: LINX LON1: Main
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 80.76.192.0/20 | 4.1K |
5.3%
|
Atlas Communications (NI) Ltd | GB | Northern Ireland | Belfast |
| 80.95.176.0/20 | 4.1K |
4.1%
|
Atlas Communications (NI) Ltd | GB | Northern Ireland | Belfast |
| 185.66.208.0/22 | 1.0K |
0.0%
|
Atlas Communications (NI) Ltd | GB | — | — |
| 193.27.32.0/22 | 1.0K |
0.0%
|
Atlas Communications (NI) Ltd | GB | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS31641 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 80.95.176.0/20 | 5,757 | 2026-07-31 12:06:19 |
| 80.76.192.0/20 | 5,736 | 2026-07-31 12:06:19 |
| 185.66.208.0/22 | 5,691 | 2026-07-31 12:06:19 |
| 193.27.32.0/22 | 5,672 | 2026-07-31 12:06:19 |
Frequently Asked Questions
What is AS31641?
AS31641 is an Autonomous System Number assigned to Atlas Communications (NI) Ltd. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS31641 announce?
AS31641 announces 10.2K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in United Kingdom.
Who operates AS31641?
AS31641 is operated by Atlas Communications (NI) Ltd. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.
What country is AS31641 registered in?
AS31641 is registered in United Kingdom. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
