AS39855
Mod Mission Critical LLC
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
- Multiple-origin (MOAS) routing anomaly −12
- Enterprise allocation +4
- Trust score 57 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 19 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS39855 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 212.124.80.0/22 | AS39855, AS54103 | 2026-07-23 09:23:28 |
| 188.240.232.0/24 | AS39855, AS54103 | 2026-07-23 09:23:28 |
| 178.239.197.0/24 | AS39855, AS54103 | 2026-07-23 09:23:28 |
| 89.35.154.0/24 | AS39855, AS54103 | 2026-07-23 09:23:28 |
| 89.35.155.0/24 | AS39855, AS54103 | 2026-07-23 09:23:28 |
| 188.241.110.0/24 | AS39855, AS54103 | 2026-07-23 09:23:28 |
| 89.31.218.0/24 | AS39855, AS54103 | 2026-07-23 09:23:28 |
| 89.40.76.0/24 | AS39855, AS54103 | 2026-07-23 09:23:28 |
| 188.240.233.0/24 | AS39855, AS54103 | 2026-07-22 23:23:24 |
| 188.241.243.0/24 | AS39855, AS54103 | 2026-07-22 23:23:24 |
| 188.241.242.0/24 | AS39855, AS54103 | 2026-07-22 23:23:24 |
| 130.185.172.0/22 | AS39855, AS54103 | 2026-07-22 23:23:24 |
| 188.240.230.0/24 | AS39855, AS54103 | 2026-07-22 23:23:24 |
| 185.244.220.0/24 | AS39855, AS54103 | 2026-07-22 23:23:24 |
| 85.203.56.0/22 | AS39855, AS54103 | 2026-07-22 23:23:24 |
Showing the 15 most recently detected of 19 MOAS prefixes. Many multi-origin prefixes on large networks are benign (anycast); see all MOAS anomalies.
Network profile
Source: PeeringDB →Present at 1 internet exchange: Equinix Dublin: Equinix IX - DB Metro
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS39855 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 |
|---|---|---|
| 201.149.92.0/22 | 155,817 | 2026-07-23 09:08:24 |
| 201.149.40.0/22 | 155,256 | 2026-07-23 09:08:24 |
| 45.86.248.0/22 | 117,277 | 2026-07-23 09:07:59 |
| 45.85.224.0/22 | 117,047 | 2026-07-23 09:07:59 |
| 37.16.91.0/24 | 112,566 | 2026-07-23 09:07:59 |
| 193.108.131.0/24 | 112,172 | 2026-07-23 09:07:43 |
| 195.60.170.0/24 | 112,117 | 2026-07-23 09:07:43 |
| 193.56.112.0/24 | 111,752 | 2026-07-23 09:07:43 |
| 217.8.116.0/24 | 111,413 | 2026-07-23 09:07:43 |
| 216.155.40.0/24 | 111,144 | 2026-07-23 09:07:43 |
| 185.161.78.0/24 | 111,022 | 2026-07-23 09:07:43 |
| 185.65.70.0/24 | 110,970 | 2026-07-23 09:07:43 |
| 185.83.230.0/24 | 110,698 | 2026-07-23 09:07:43 |
| 185.76.149.0/24 | 110,698 | 2026-07-23 09:07:43 |
| 178.212.141.0/24 | 110,617 | 2026-07-23 09:07:43 |
| 178.212.142.0/24 | 110,253 | 2026-07-23 09:07:43 |
| 178.211.154.0/24 | 110,234 | 2026-07-23 09:07:43 |
| 84.54.35.0/24 | 101,108 | 2026-07-23 09:12:52 |
| 45.15.211.0/24 | 96,937 | 2026-07-23 09:07:43 |
| 45.86.85.0/24 | 96,595 | 2026-07-23 09:07:43 |
| 45.157.138.0/24 | 96,566 | 2026-07-23 09:07:43 |
| 216.155.34.0/24 | 67,884 | 2026-07-23 09:09:04 |
| 91.212.20.0/24 | 51,991 | 2026-07-23 09:14:11 |
| 91.212.27.0/24 | 51,974 | 2026-07-23 09:14:11 |
| 91.229.5.0/24 | 51,917 | 2026-07-23 09:14:11 |
| 91.235.113.0/24 | 51,903 | 2026-07-23 09:14:11 |
| 193.110.161.0/24 | 47,794 | 2026-07-23 09:07:53 |
| 194.104.1.0/24 | 47,526 | 2026-07-23 09:07:53 |
| 194.104.85.0/24 | 47,524 | 2026-07-23 09:07:53 |
| 195.238.95.0/24 | 47,315 | 2026-07-23 09:07:53 |
| 157.97.145.0/24 | 47,270 | 2026-07-23 09:07:53 |
| 195.226.205.0/24 | 47,055 | 2026-07-23 09:07:53 |
| 81.21.237.0/24 | 40,552 | 2026-07-23 09:12:23 |
| 81.21.239.0/24 | 40,534 | 2026-07-23 09:12:23 |
| 81.21.238.0/24 | 40,516 | 2026-07-23 09:12:23 |
| 81.21.236.0/24 | 40,406 | 2026-07-23 09:12:23 |
| 95.214.157.0/24 | 40,286 | 2026-07-23 09:15:05 |
| 95.214.156.0/24 | 40,245 | 2026-07-23 09:15:05 |
| 95.214.159.0/24 | 40,231 | 2026-07-23 09:15:05 |
| 95.214.158.0/24 | 40,184 | 2026-07-23 09:15:05 |
| 45.152.35.0/24 | 40,010 | 2026-07-23 09:15:25 |
| 45.152.34.0/24 | 39,980 | 2026-07-23 09:15:25 |
| 62.197.131.0/24 | 39,912 | 2026-07-23 09:17:39 |
| 62.197.130.0/24 | 39,886 | 2026-07-23 09:17:39 |
| 168.199.22.0/24 | 33,791 | 2026-07-23 09:07:53 |
| 168.199.23.0/24 | 33,785 | 2026-07-23 09:07:53 |
| 193.223.74.0/24 | 32,694 | 2026-07-23 09:07:53 |
| 193.223.73.0/24 | 32,687 | 2026-07-23 09:07:53 |
| 193.223.75.0/24 | 32,682 | 2026-07-23 09:07:53 |
| 193.223.72.0/24 | 32,635 | 2026-07-23 09:07:53 |
Showing top 50 of 528 announced prefixes by sample volume.
Frequently Asked Questions
What is AS39855?
AS39855 is an Autonomous System Number assigned to Mod Mission Critical LLC. 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 AS39855 announce?
AS39855 announces 138.8K IPv4 addresses distributed across 316 routed CIDR prefixes. The network is registered in United Kingdom.
Who operates AS39855?
AS39855 is operated by MOD Mission Critical, LLC. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.
What country is AS39855 registered in?
AS39855 is registered in United Kingdom. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
