AS19518
Rock Island Communications
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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: SIX Seattle: MTU 1500
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 63.249.0.0/19 | 8.2K |
0.0%
|
Rock Island Communications | US | Washington | Friday Harbor |
| 64.119.0.0/20 | 4.1K |
77.1%
|
Rock Island Communications | US | Washington | Friday Harbor |
| 207.32.160.0/20 | 4.1K |
85.4%
|
Rock Island Communications | US | Washington | Eastsound |
| 44.30.136.0/21 | 2.0K |
0.0%
|
University of California, San Diego | US | Washington | Olga |
| 198.163.74.0/24 | 256 |
1.6%
|
Rock Island Communications | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS19518 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 |
|---|---|---|
| 63.249.0.0/19 | 108,410 | 2026-07-29 21:14:52 |
| 64.119.0.0/20 | 106,759 | 2026-07-29 21:16:12 |
| 207.32.160.0/20 | 106,660 | 2026-07-29 21:19:35 |
| 44.30.136.0/21 | 55,597 | 2026-07-29 21:19:03 |
| 198.163.74.0/24 | 2,312 | 2026-07-13 06:46:32 |
Frequently Asked Questions
What is AS19518?
AS19518 is an Autonomous System Number assigned to Rock Island Communications. 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 AS19518 announce?
AS19518 announces 18.7K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in United States.
Who operates AS19518?
AS19518 is operated by Rock Island Communications. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS19518 registered in?
AS19518 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
