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
- Active-threat / abuse risk −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS53991 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) |
|---|---|---|
| 69.171.209.0/24 | AS53991, AS211826 | 2026-10-08 22:58:12 |
Network profile
Source: PeeringDB →Present at 9 internet exchanges: IX.br (PTT.br) São Paulo: ATM/MPLA, Equinix Ashburn, PIT MX, DE-CIX Dallas: DE-CIX Dallas Peering LAN, TorIX, SLIX - Salt Lake City Internet Exchange, Equinix São Paulo: Equinix IX - SP Metro, VANIX, DE-CIX Mexico
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS53991 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 |
|---|---|---|
| 206.188.216.0/24 | 676,667 | 2026-10-09 12:04:57 |
| 206.188.217.0/24 | 569,329 | 2026-10-09 12:04:57 |
| 199.193.156.0/24 | 133,160 | 2026-10-09 12:02:04 |
| 75.127.100.0/24 | 123,083 | 2026-10-09 12:02:04 |
| 75.127.101.0/24 | 122,786 | 2026-10-09 12:02:04 |
| 199.83.247.0/24 | 118,441 | 2026-10-09 11:45:15 |
| 162.244.6.0/24 | 107,702 | 2026-10-09 11:45:15 |
| 199.193.157.0/24 | 107,107 | 2026-10-09 12:02:04 |
| 199.193.159.0/24 | 104,746 | 2026-10-09 12:02:04 |
| 199.83.246.0/24 | 100,610 | 2026-10-09 11:12:14 |
| 162.244.7.0/24 | 97,817 | 2026-10-09 11:45:15 |
| 91.198.51.0/24 | 97,548 | 2026-10-09 11:45:15 |
| 184.174.114.0/24 | 73,784 | 2026-10-09 11:13:01 |
| 199.193.158.0/24 | 72,410 | 2026-10-09 11:13:01 |
| 205.196.140.0/22 | 47,067 | 2026-10-09 11:44:12 |
| 216.245.154.0/24 | 39,148 | 2026-10-09 11:13:07 |
| 209.236.198.0/23 | 34,609 | 2026-10-09 11:13:01 |
| 181.215.30.0/24 | 33,345 | 2026-10-09 11:13:07 |
| 164.152.125.0/24 | 28,448 | 2026-10-09 11:12:13 |
| 69.171.209.0/24 | 26,002 | 2026-10-09 11:12:24 |
| 216.245.155.0/24 | 20,003 | 2026-10-09 11:13:07 |
| 199.83.245.0/24 | 19,612 | 2026-10-09 11:12:14 |
| 209.137.180.0/22 | 17,537 | 2026-10-09 11:13:07 |
| 164.152.124.0/24 | 17,504 | 2026-10-09 11:12:13 |
| 216.105.167.0/24 | 16,904 | 2026-10-09 11:13:07 |
| 104.164.103.0/24 | 16,669 | 2026-10-09 11:13:07 |
| 199.83.244.0/24 | 14,621 | 2026-10-09 11:43:58 |
| 66.249.140.0/24 | 14,466 | 2026-10-09 11:43:58 |
| 23.231.20.0/23 | 14,393 | 2026-10-09 11:12:24 |
Frequently Asked Questions
What is AS53991?
AS53991 is an Autonomous System Number assigned to Acronis. 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 AS53991 announce?
AS53991 announces 9.5K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in United States.
Who operates AS53991?
AS53991 is operated by Acronis. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS53991 registered in?
AS53991 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
