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
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About Indiana University
Indiana University (IU) is a system of public universities in the U.S. state of Indiana.
Network profile
Source: PeeringDB →AS87 — global IP footprint
Cities where AS87 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 149.162.0.0/15 | 131.1K |
1.1%
|
Indiana University | US | Indiana | Indianapolis |
| 129.79.0.0/16 | 65.5K |
12.8%
|
Indiana University | US | Indiana | Bloomington |
| 134.68.0.0/16 | 65.5K |
6.6%
|
Indiana University | US | Indiana | Indianapolis |
| 140.182.0.0/16 | 65.5K |
5.9%
|
Indiana University | US | Indiana | Indianapolis |
| 149.161.0.0/16 | 65.5K |
0.1%
|
Indiana University | US | Indiana | South Bend |
| 149.166.0.0/16 | 65.5K |
2.9%
|
Indiana University | US | Indiana | Indianapolis |
| 156.56.0.0/16 | 65.5K |
7.0%
|
Indiana University | US | Indiana | Bloomington |
| 149.159.0.0/17 | 32.8K |
0.4%
|
Indiana University | US | Indiana | Bloomington |
| 149.160.0.0/17 | 32.8K |
0.1%
|
Indiana University | US | Indiana | Osceola |
| 149.165.0.0/17 | 32.8K |
0.2%
|
Indiana University | US | Indiana | Richmond |
| 198.49.177.0/24 | 256 |
10.9%
|
Indiana University | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS87 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 |
|---|---|---|
| 149.161.128.0/17 | 33,583 | 2026-09-10 18:08:03 |
| 198.49.177.0/24 | 12,237 | 2026-09-10 18:08:03 |
| 129.79.0.0/16 | 12,207 | 2026-09-10 18:08:03 |
| 140.182.0.0/16 | 12,160 | 2026-09-10 18:08:03 |
| 149.159.0.0/19 | 12,122 | 2026-09-10 18:08:41 |
| 156.56.0.0/16 | 12,116 | 2026-09-10 18:08:03 |
| 149.165.0.0/17 | 11,099 | 2026-09-10 18:07:32 |
| 149.162.0.0/16 | 11,059 | 2026-09-10 18:07:37 |
| 140.182.0.0/19 | 11,040 | 2026-09-10 18:08:03 |
| 149.163.0.0/16 | 11,028 | 2026-09-10 18:07:37 |
| 149.160.0.0/16 | 11,022 | 2026-09-10 18:07:37 |
| 134.68.0.0/16 | 11,015 | 2026-09-10 18:08:03 |
| 149.161.0.0/16 | 11,012 | 2026-09-10 18:07:37 |
| 149.166.0.0/16 | 10,993 | 2026-09-10 18:07:37 |
| 149.160.0.0/14 | 10,805 | 2026-09-10 18:07:37 |
| 149.159.0.0/17 | 10,719 | 2026-09-10 18:08:41 |
Frequently Asked Questions
What is AS87?
AS87 is an Autonomous System Number assigned to Indiana University. 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 AS87 announce?
AS87 announces 622.8K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in United States.
Who operates AS87?
AS87 is operated by Indiana University. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS87 registered in?
AS87 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
