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 →
Network profile
Source: PeeringDB →Present at 1 internet exchange: DE-CIX Dallas: DE-CIX Dallas Peering LAN
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 172.81.148.0/22 | 1.0K |
0.2%
|
Core Transit LLC | US | Alabama | Gadsden |
| 216.146.16.0/22 | 1.0K |
45.1%
|
Core Transit LLC | US | Virginia | Saluda |
| 134.199.56.0/23 | 512 |
1.8%
|
Core Transit LLC | US | Georgia | Atlanta |
| 23.145.20.0/24 | 256 |
1.6%
|
Core Transit LLC | US | Alabama | Graysville |
| 23.152.68.0/24 | 256 |
0.4%
|
Core Transit LLC | US | — | — |
| 50.20.192.0/24 | 256 |
0.0%
|
Core Transit LLC | US | Washington | Seattle |
| 50.20.195.0/24 | 256 |
0.8%
|
Core Transit LLC | US | California | Valley Springs |
| 134.199.54.0/24 | 256 |
0.0%
|
Core Transit LLC | US | — | — |
| 167.88.212.0/24 | 256 |
77.0%
|
Core Transit LLC | US | — | — |
| 167.88.222.0/24 | 256 |
73.0%
|
Core Transit LLC | US | — | — |
| 192.34.112.0/24 | 256 |
0.8%
|
Core Transit LLC | US | Texas | Dallas |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS1097 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 |
|---|---|---|
| 172.81.148.0/22 | 99,367 | 2026-07-23 15:42:11 |
| 23.152.68.0/24 | 97,631 | 2026-07-23 15:42:11 |
| 134.199.56.0/23 | 93,929 | 2026-07-23 15:42:11 |
| 23.145.20.0/24 | 93,921 | 2026-07-23 15:42:11 |
| 134.199.56.0/24 | 89,539 | 2026-07-23 15:42:12 |
| 167.88.212.0/24 | 12,222 | 2026-07-23 15:40:24 |
| 50.20.192.0/24 | 12,159 | 2026-07-23 15:40:24 |
| 50.20.195.0/24 | 12,158 | 2026-07-23 15:40:24 |
| 216.146.19.0/24 | 7,379 | 2026-07-23 15:41:23 |
| 192.34.112.0/24 | 7,344 | 2026-07-23 15:41:23 |
| 216.146.16.0/24 | 7,334 | 2026-07-23 15:41:23 |
| 216.146.17.0/24 | 7,309 | 2026-07-23 15:41:23 |
| 216.146.18.0/24 | 7,301 | 2026-07-23 15:41:23 |
| 134.199.54.0/24 | 4,010 | 2026-07-23 15:40:24 |
| 167.88.222.0/24 | 3,986 | 2026-07-23 15:40:24 |
| 50.20.192.0/23 | 77 | 2026-05-29 15:57:22 |
Frequently Asked Questions
What is AS1097?
AS1097 is an Autonomous System Number assigned to Core Transit LLC. 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 AS1097 announce?
AS1097 announces 4.6K IPv4 addresses distributed across 11 routed CIDR prefixes. The network is registered in United States.
Who operates AS1097?
AS1097 is operated by Core Transit LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS1097 registered in?
AS1097 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
