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
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 8 internet exchanges: Equinix Los Angeles, Equinix New York, Equinix San Jose, Equinix Ashburn, AMS-IX, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, Equinix Singapore, Equinix Tokyo
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS27381 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 |
|---|---|---|
| 103.55.112.0/24 | 11,060 | 2026-07-31 08:31:36 |
| 139.5.84.0/22 | 10,430 | 2026-07-31 08:31:36 |
| 110.44.7.0/24 | 8,064 | 2026-07-31 08:31:36 |
| 103.104.50.0/24 | 7,946 | 2026-07-31 08:31:36 |
| 8.36.162.0/24 | 7,679 | 2026-07-31 08:20:08 |
| 23.90.68.0/24 | 7,590 | 2026-07-31 08:31:36 |
| 192.40.34.0/24 | 6,434 | 2026-07-31 08:20:07 |
| 192.40.35.0/24 | 6,433 | 2026-07-31 08:20:07 |
| 209.204.225.0/24 | 6,388 | 2026-07-31 08:20:07 |
| 209.204.224.0/24 | 6,376 | 2026-07-31 08:20:07 |
| 75.119.185.0/24 | 5,983 | 2026-07-31 08:25:37 |
| 192.40.39.0/24 | 5,923 | 2026-07-31 08:25:37 |
| 192.40.38.0/23 | 5,889 | 2026-07-31 08:25:37 |
| 209.204.231.0/24 | 5,845 | 2026-07-31 08:25:37 |
| 209.204.235.0/24 | 5,841 | 2026-07-31 08:25:37 |
| 192.40.33.0/24 | 5,837 | 2026-07-31 08:20:09 |
| 209.204.233.0/24 | 5,835 | 2026-07-31 08:25:37 |
| 209.204.237.0/24 | 5,831 | 2026-07-31 08:20:09 |
| 209.204.234.0/24 | 5,830 | 2026-07-31 08:25:37 |
| 192.40.32.0/24 | 5,828 | 2026-07-31 08:20:09 |
| 209.204.232.0/24 | 5,828 | 2026-07-31 08:25:37 |
| 209.204.238.0/24 | 5,815 | 2026-07-31 08:20:09 |
| 209.204.226.0/24 | 5,811 | 2026-07-31 08:20:07 |
| 209.204.236.0/24 | 5,806 | 2026-07-31 08:20:09 |
| 170.76.129.0/24 | 5,772 | 2026-07-31 08:20:07 |
| 170.76.128.0/24 | 5,765 | 2026-07-31 08:20:07 |
| 192.139.80.0/24 | 5,718 | 2026-07-31 08:20:07 |
| 209.204.229.0/24 | 5,672 | 2026-07-31 08:20:09 |
| 209.204.239.0/24 | 5,658 | 2026-07-31 08:20:09 |
| 209.204.227.0/24 | 5,640 | 2026-07-31 08:20:09 |
| 192.40.36.0/24 | 5,627 | 2026-07-31 08:20:09 |
| 192.40.37.0/24 | 5,620 | 2026-07-31 08:20:09 |
| 209.204.230.0/24 | 5,616 | 2026-07-31 08:20:09 |
| 209.204.228.0/24 | 5,586 | 2026-07-31 08:20:09 |
| 85.91.46.0/24 | 4,131 | 2026-07-31 08:25:35 |
| 85.91.47.0/24 | 4,127 | 2026-07-31 08:25:35 |
| 185.80.37.0/24 | 4,060 | 2026-07-31 08:25:35 |
| 185.170.63.0/24 | 4,029 | 2026-07-31 08:25:35 |
| 185.170.62.0/24 | 4,008 | 2026-07-31 08:25:35 |
| 185.80.36.0/24 | 3,998 | 2026-07-31 08:25:35 |
| 85.91.44.0/24 | 3,955 | 2026-07-31 08:20:09 |
| 85.91.45.0/24 | 3,954 | 2026-07-31 08:20:09 |
| 185.80.38.0/24 | 3,888 | 2026-07-31 08:20:09 |
| 185.170.60.0/24 | 3,884 | 2026-07-31 08:19:59 |
| 185.80.39.0/24 | 3,884 | 2026-07-31 08:20:09 |
| 185.170.61.0/24 | 3,876 | 2026-07-31 08:19:59 |
Frequently Asked Questions
What is AS27381?
AS27381 is an Autonomous System Number assigned to Index Exchange Inc.. 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 AS27381 announce?
AS27381 announces 12.5K IPv4 addresses distributed across 14 routed CIDR prefixes. The network is registered in United States.
Who operates AS27381?
AS27381 is operated by Index Exchange Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS27381 registered in?
AS27381 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
