$ query “AS16857” --type=asn → 1 result(s)
AS16857 · CENTEX
Central Texas Telecommunications
AS16857 is run by Central Texas Telecommunications and is a stub network, established in the United States in 2000. The system announces a respectable 12 544 IPv4 addresses. The bulk of its IP address space is in the United States. No IPv6 support — it's 2026, just saying.
Basic Information
- Country
- 🇺🇸 United States
- Category
- Internet Service Provider
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- June 20, 2000
- Last Changed
- March 04, 2026
- Last Seen
- April 16, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 27 / 16
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 12 544
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Geolocated Countries
- 🇺🇸 United States (12 544 IPs)
- Prefix Changed
- March 25, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 5 upstreams providing transit
- Unclassified
- 1 unclassified BGP neighbor
- Degree
- 6 unique BGP neighbors
- Reach
- 0 networks in customer cone
Upstream Providers (5)
Prefix Lists
IPv4 Prefixes (27 total)
- 209.55.96.0/20 (4 096 addresses (/20 prefix))
- 209.55.72.0/21 (2 048 addresses (/21 prefix))
- 69.7.88.0/22 (1 024 addresses (/22 prefix))
- 74.84.20.0/22 (1 024 addresses (/22 prefix))
- 74.84.28.0/23 (512 addresses (/23 prefix))
- 69.7.80.0/23 (512 addresses (/23 prefix))
- 74.84.8.0/23 (512 addresses (/23 prefix))
- 209.55.64.0/23 (512 addresses (/23 prefix))
- 66.208.102.0/23 (512 addresses (/23 prefix))
- 69.7.82.0/24 (256 addresses (/24 prefix))
- 69.7.85.0/24 (256 addresses (/24 prefix))
- 66.208.110.0/24 (256 addresses (/24 prefix))
- 74.84.10.0/24 (256 addresses (/24 prefix))
- 66.208.105.0/24 (256 addresses (/24 prefix))
- 66.208.96.0/24 (256 addresses (/24 prefix))
- 66.208.99.0/24 (256 addresses (/24 prefix))