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 v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 4 internet exchanges: Equinix Chicago, Equinix San Jose, Equinix Dallas, Equinix Ashburn
Web3 footprint
AS19108 hosts 7 observed decentralized-network nodes across 4 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS19108 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 |
|---|---|---|
| 209.209.188.0/24 | 143,062 | 2026-11-12 23:45:18 |
| 50.27.0.0/17 | 82,608 | 2026-11-12 22:01:21 |
| 207.254.255.0/24 | 51,268 | 2026-11-12 23:45:18 |
| 207.254.254.0/24 | 43,394 | 2026-11-12 23:45:18 |
| 64.72.47.0/24 | 42,989 | 2026-11-12 23:45:18 |
| 24.32.32.0/21 | 39,189 | 2026-11-12 23:45:18 |
| 24.32.130.0/24 | 35,392 | 2026-11-12 23:45:18 |
| 75.111.48.0/20 | 33,115 | 2026-11-12 23:39:37 |
| 75.111.96.0/20 | 33,046 | 2026-11-12 23:39:37 |
| 74.195.64.0/18 | 30,695 | 2026-11-12 23:45:18 |
| 74.194.0.0/17 | 30,621 | 2026-11-12 23:45:18 |
| 74.195.0.0/18 | 30,550 | 2026-11-12 23:45:18 |
| 74.194.128.0/19 | 30,507 | 2026-11-12 23:45:18 |
| 74.194.160.0/20 | 30,445 | 2026-11-12 23:45:18 |
| 74.194.192.0/18 | 30,444 | 2026-11-12 23:45:18 |
| 74.194.0.0/15 | 30,340 | 2026-11-12 23:45:18 |
| 74.192.0.0/15 | 30,316 | 2026-11-12 23:45:18 |
| 75.111.0.0/18 | 29,318 | 2026-11-12 23:39:37 |
| 47.208.0.0/15 | 29,309 | 2026-11-12 23:39:37 |
| 173.81.0.0/17 | 29,155 | 2026-11-12 23:43:56 |
| 50.24.24.0/24 | 28,390 | 2026-11-12 09:15:46 |
| 209.33.10.0/24 | 25,303 | 2026-11-12 23:46:47 |
| 209.33.11.0/24 | 25,216 | 2026-11-12 23:46:47 |
| 47.216.0.0/17 | 24,267 | 2026-11-12 23:46:28 |
| 47.216.128.0/17 | 24,073 | 2026-11-12 23:46:28 |
| 74.192.46.0/24 | 23,318 | 2026-11-12 23:45:18 |
| 74.192.47.0/24 | 23,241 | 2026-11-12 23:45:18 |
| 75.109.96.0/22 | 22,305 | 2026-11-12 23:48:12 |
| 47.217.192.0/18 | 22,253 | 2026-11-12 23:46:28 |
| 47.217.128.0/18 | 22,211 | 2026-11-12 23:46:28 |
| 47.214.192.0/18 | 22,183 | 2026-11-12 23:46:28 |
| 47.214.128.0/18 | 22,101 | 2026-11-12 23:46:28 |
| 47.223.0.0/17 | 21,421 | 2026-11-12 23:19:29 |
| 47.218.0.0/17 | 21,398 | 2026-11-12 23:24:46 |
| 50.27.128.0/17 | 21,368 | 2026-11-12 23:19:48 |
| 50.24.128.0/17 | 21,344 | 2026-11-12 21:04:07 |
| 47.210.128.0/17 | 21,319 | 2026-11-12 21:04:07 |
| 50.24.0.0/17 | 21,317 | 2026-11-12 21:04:07 |
| 47.210.0.0/17 | 21,288 | 2026-11-12 21:04:07 |
| 47.223.128.0/17 | 21,281 | 2026-11-12 21:04:07 |
| 47.219.128.0/17 | 21,150 | 2026-11-12 22:01:21 |
| 47.219.0.0/17 | 21,080 | 2026-11-12 22:01:21 |
| 47.218.128.0/17 | 21,068 | 2026-11-12 22:01:21 |
| 207.254.240.0/23 | 21,055 | 2026-11-12 23:45:18 |
| 47.221.0.0/17 | 20,984 | 2026-11-12 22:01:21 |
| 47.221.128.0/17 | 20,977 | 2026-11-12 22:01:21 |
| 50.24.192.0/20 | 19,348 | 2026-11-12 23:45:18 |
| 47.213.80.0/20 | 19,082 | 2026-11-12 23:45:18 |
| 173.81.128.0/17 | 18,502 | 2026-11-12 23:46:28 |
| 173.80.0.0/17 | 18,495 | 2026-11-12 23:46:28 |
Showing top 50 of 417 announced prefixes by sample volume.
Frequently Asked Questions
What is AS19108?
AS19108 is an Autonomous System Number assigned to Optimum. 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 AS19108 announce?
AS19108 announces 2.84M IPv4 addresses distributed across 2,912 routed CIDR prefixes. The network is registered in United States.
Who operates AS19108?
AS19108 is operated by Optimum. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS19108 registered in?
AS19108 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
