$ query “AS2153” --type=asn → 1 result(s)
AS2153 · CENIC-2153
CENIC
AS2153 is run by CENIC and is a mid-size transit provider, established in the United States in 2024. The system announces 3 328 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in the United States.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇺🇸 United States
- Category
- Hosting
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- July 08, 2024
- Last Changed
- March 04, 2026
- Last Seen
- April 28, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 11 / 10
- IPv6 Prefixes (raw / aggregated)
- 2 / 2
- IPv4 Addresses
- 3 328
- Largest IPv4 Prefix
- /23 (512 addresses)
- Largest IPv6 Prefix
- /40
- Geolocated Countries
- 🇺🇸 United States (3 328 IPs)
- Prefix Changed
- April 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Peers
- 13 networks exchanging traffic without transit
- Downstream Customers
- 25 downstreams buying transit
- Unclassified
- 1 unclassified BGP neighbor
- Degree
- 41 unique BGP neighbors
- Reach
- 89 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (11 total)
- 130.150.12.0/23 (512 addresses (/23 prefix))
- 137.164.26.0/23 (512 addresses (/23 prefix))
- 209.129.60.0/23 (512 addresses (/23 prefix))
- 132.241.61.0/24 (256 addresses (/24 prefix))
- 136.168.238.0/24 (256 addresses (/24 prefix))
- 137.150.137.0/24 (256 addresses (/24 prefix))
- 137.164.17.0/24 (256 addresses (/24 prefix))
- 137.164.25.0/24 (256 addresses (/24 prefix))
- 137.164.28.0/24 (256 addresses (/24 prefix))
- 205.154.51.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (2 total)
- 2001:468:e00::/40
- 2607:f380:4::/48