AS13576
SDN 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
- Active-threat / abuse risk −12
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 5 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS13576 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 66.231.21.0/24 | AS13576, AS393417 | 2026-11-12 13:54:00 |
| 66.231.7.0/24 | AS13576, AS393417 | 2026-11-12 13:54:00 |
| 208.53.212.0/24 | AS13576, AS393417 | 2026-11-12 13:54:00 |
| 66.231.0.0/24 | AS13576, AS393417 | 2026-11-12 13:54:00 |
| 208.53.207.0/24 | AS13576, AS393417 | 2026-11-12 13:54:00 |
Network profile
Source: PeeringDB →Present at 3 internet exchanges: OmahaIX, MICE: Shared Peering, IX-Denver: IX-Denver Fabric
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS13576 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 |
|---|---|---|
| 66.231.29.0/24 | 34,587 | 2026-11-12 13:56:17 |
| 66.128.174.0/24 | 33,201 | 2026-11-12 13:56:17 |
| 66.231.15.0/24 | 31,901 | 2026-11-12 13:56:17 |
| 204.80.157.0/24 | 23,647 | 2026-11-12 13:56:17 |
| 66.115.198.0/24 | 23,527 | 2026-11-12 13:56:17 |
| 162.120.74.0/23 | 23,450 | 2026-11-12 13:56:17 |
| 38.191.156.0/22 | 23,305 | 2026-11-12 13:56:17 |
| 64.33.252.0/24 | 23,273 | 2026-11-12 13:56:17 |
| 170.199.220.0/23 | 23,267 | 2026-11-12 13:56:17 |
| 66.115.252.0/23 | 23,250 | 2026-11-12 13:56:17 |
| 66.231.26.0/24 | 23,229 | 2026-11-12 13:56:17 |
| 208.53.193.0/24 | 23,208 | 2026-11-12 13:56:17 |
| 208.53.209.0/24 | 23,208 | 2026-11-12 13:56:17 |
| 208.53.198.0/23 | 23,161 | 2026-11-12 13:56:17 |
| 208.53.197.0/24 | 23,156 | 2026-11-12 13:56:17 |
| 216.249.224.0/23 | 23,154 | 2026-11-12 13:56:17 |
| 66.128.175.0/24 | 23,054 | 2026-11-12 13:56:17 |
| 216.249.242.0/23 | 23,003 | 2026-11-12 13:56:17 |
| 216.106.232.0/22 | 22,972 | 2026-11-12 13:56:17 |
| 66.128.166.0/23 | 22,954 | 2026-11-12 13:56:17 |
| 208.53.221.0/24 | 22,927 | 2026-11-12 13:56:17 |
| 66.115.227.0/24 | 22,773 | 2026-11-12 13:56:17 |
| 216.249.195.0/24 | 22,690 | 2026-11-12 13:56:17 |
| 170.199.219.0/24 | 22,451 | 2026-11-12 13:56:17 |
| 208.53.203.0/24 | 22,286 | 2026-11-12 13:56:17 |
| 208.53.194.0/24 | 22,262 | 2026-11-12 13:56:17 |
| 216.249.222.0/23 | 21,943 | 2026-11-12 13:56:17 |
| 66.115.226.0/24 | 21,876 | 2026-11-12 13:56:17 |
| 209.151.181.0/24 | 21,737 | 2026-11-12 13:56:17 |
| 170.199.218.0/24 | 20,985 | 2026-11-12 13:56:17 |
| 68.168.224.0/20 | 20,895 | 2026-11-12 13:56:17 |
| 208.53.196.0/24 | 20,229 | 2026-11-12 13:56:17 |
| 66.231.0.0/24 | 20,185 | 2026-11-12 13:56:17 |
| 66.128.160.0/19 | 20,050 | 2026-11-12 13:56:17 |
| 66.231.0.0/19 | 20,008 | 2026-11-12 13:56:17 |
| 64.33.224.0/19 | 20,005 | 2026-11-12 13:56:17 |
| 66.115.192.0/18 | 19,953 | 2026-11-12 13:56:17 |
| 216.249.192.0/18 | 19,905 | 2026-11-12 13:56:17 |
| 209.151.176.0/20 | 19,899 | 2026-11-12 13:56:17 |
| 208.53.192.0/18 | 19,818 | 2026-11-12 13:56:17 |
| 216.106.192.0/18 | 19,679 | 2026-11-12 13:56:17 |
| 142.202.132.0/22 | 19,621 | 2026-11-12 13:56:17 |
| 199.96.68.0/22 | 19,418 | 2026-11-12 13:56:17 |
| 104.167.204.0/22 | 19,416 | 2026-11-12 13:56:17 |
| 206.85.176.0/21 | 19,303 | 2026-11-12 13:56:17 |
| 66.115.234.0/24 | 19,119 | 2026-11-12 13:56:17 |
| 66.115.201.0/24 | 19,093 | 2026-11-12 13:56:17 |
| 66.115.224.0/24 | 19,049 | 2026-11-12 13:56:17 |
| 66.115.223.0/24 | 19,047 | 2026-11-12 13:56:17 |
| 66.115.254.0/24 | 19,024 | 2026-11-12 13:56:17 |
Showing top 50 of 96 announced prefixes by sample volume.
Frequently Asked Questions
What is AS13576?
AS13576 is an Autonomous System Number assigned to SDN 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 AS13576 announce?
AS13576 announces 53.2K IPv4 addresses distributed across 95 routed CIDR prefixes. The network is registered in United States.
Who operates AS13576?
AS13576 is operated by SDN Communications. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS13576 registered in?
AS13576 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
