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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
AS11231 — global IP footprint
Cities where AS11231 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 |
|---|---|---|---|---|---|---|
| 138.234.0.0/16 | 65.5K |
77.3%
|
GETTYSBURG COLLEGE | US | Pennsylvania | Gettysburg |
| 138.234.128.0/17 | 32.8K |
84.6%
|
GETTYSBURG COLLEGE | US | Pennsylvania | Gettysburg |
| 138.234.64.0/18 | 16.4K |
74.0%
|
GETTYSBURG COLLEGE | US | Pennsylvania | Gettysburg |
| 138.234.128.0/18 | 16.4K |
78.4%
|
GETTYSBURG COLLEGE | US | Pennsylvania | Gettysburg |
| 138.234.0.0/19 | 8.2K |
61.7%
|
GETTYSBURG COLLEGE | US | Pennsylvania | Gettysburg |
| 138.234.48.0/20 | 4.1K |
99.0%
|
GETTYSBURG COLLEGE | US | Pennsylvania | Gettysburg |
| 138.234.192.0/20 | 4.1K |
96.2%
|
GETTYSBURG COLLEGE | US | Pennsylvania | Gettysburg |
| 138.234.240.0/20 | 4.1K |
68.2%
|
GETTYSBURG COLLEGE | US | Pennsylvania | Gettysburg |
| 138.234.40.0/21 | 2.0K |
33.5%
|
GETTYSBURG COLLEGE | US | Pennsylvania | Gettysburg |
| 138.234.232.0/21 | 2.0K |
99.2%
|
GETTYSBURG COLLEGE | US | — | — |
| 138.234.228.0/22 | 1.0K |
96.9%
|
GETTYSBURG COLLEGE | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS11231 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 |
|---|---|---|
| 138.234.228.0/22 | 24,371 | 2026-07-20 03:09:11 |
| 138.234.200.0/21 | 24,255 | 2026-07-20 03:09:11 |
| 138.234.240.0/20 | 24,230 | 2026-07-20 03:09:11 |
| 138.234.232.0/21 | 24,133 | 2026-07-20 03:09:11 |
| 138.234.192.0/22 | 22,955 | 2026-07-20 03:09:07 |
| 138.234.176.0/20 | 22,150 | 2026-07-20 03:09:15 |
| 138.234.208.0/20 | 20,897 | 2026-07-13 06:46:18 |
| 138.234.112.0/20 | 19,057 | 2026-07-20 03:09:11 |
| 138.234.128.0/20 | 18,714 | 2026-07-20 03:09:11 |
| 138.234.44.0/23 | 18,520 | 2026-07-20 01:42:20 |
| 138.234.48.0/20 | 18,494 | 2026-07-20 01:42:20 |
| 138.234.16.0/20 | 18,378 | 2026-07-20 01:42:20 |
| 138.234.40.0/22 | 18,359 | 2026-07-20 01:42:20 |
| 138.234.160.0/20 | 18,340 | 2026-07-20 01:42:21 |
| 138.234.64.0/20 | 18,239 | 2026-07-20 01:42:21 |
| 138.234.96.0/20 | 17,623 | 2026-07-20 03:09:11 |
| 138.234.46.0/23 | 17,571 | 2026-07-20 01:42:20 |
| 138.234.224.0/22 | 17,516 | 2026-07-13 06:46:18 |
| 138.234.80.0/20 | 17,504 | 2026-07-20 03:09:11 |
| 138.234.45.0/24 | 17,455 | 2026-07-20 01:42:20 |
| 138.234.0.0/20 | 17,128 | 2026-07-20 01:42:20 |
| 138.234.144.0/20 | 16,872 | 2026-07-20 03:09:11 |
| 138.234.15.0/24 | 16,378 | 2026-07-20 01:42:20 |
| 138.234.192.0/18 | 16,155 | 2026-07-13 06:46:18 |
| 138.234.2.0/23 | 15,805 | 2026-07-20 01:42:20 |
| 138.234.32.0/21 | 6,792 | 2026-07-13 06:46:18 |
| 138.234.36.0/22 | 5,748 | 2026-07-13 06:46:18 |
| 138.234.196.0/22 | 5,320 | 2026-07-20 03:09:11 |
| 138.234.128.0/18 | 1,555 | 2026-05-27 01:01:51 |
| 138.234.64.0/18 | 1,551 | 2026-05-27 01:01:51 |
| 138.234.0.0/18 | 1,538 | 2026-06-24 17:22:23 |
Frequently Asked Questions
What is AS11231?
AS11231 is an Autonomous System Number assigned to GETTYSBURG COLLEGE. 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 AS11231 announce?
AS11231 announces 65.5K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in United States.
Who operates AS11231?
AS11231 is operated by GETTYSBURG COLLEGE. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS11231 registered in?
AS11231 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
