AS13660
Blue Cross Blue Shield of North Dakota
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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 199.253.128.0/21 | 2.0K |
0.0%
|
Blue Cross Blue Shield of North Dakota | US | North Dakota | Fargo |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS13660 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 |
|---|---|---|
| 199.253.128.0/21 | 9,171 | 2026-07-18 12:21:07 |
Frequently Asked Questions
What is AS13660?
AS13660 is an Autonomous System Number assigned to Blue Cross Blue Shield of North Dakota. 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 AS13660 announce?
AS13660 announces 2.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.
Who operates AS13660?
AS13660 is operated by Blue Cross Blue Shield of North Dakota. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS13660 registered in?
AS13660 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
