$ query “AS3909” --type=asn → 1 result(s)
AS3909 — CENTURYLINK-LEGACY-QWEST-VDOC
CenturyLink Communications LLC
AS3909 is operated by CenturyLink Communications LLC and serves as an enterprise stub network, based in the United States since 1996. The system announces 6 912 IPv4 addresses. Most of its address space is geolocated to the United States, with additional presence in Australia. No IPv6 support — it's 2026, just saying.
- Pioneer — Registered before the year 2000
Basic Information
- Country
- 🇺🇸 United States
- Category
- Business
- Network Role
- Stub Network
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- October 01, 1996
- Last Changed
- March 04, 2026
- Last Seen
- April 09, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 5 / 4
- IPv6 Prefixes (raw / aggregated)
- 0 / 0
- IPv4 Addresses
- 6 912
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Geolocated Countries
- 🇺🇸 United States (4 864 IPs), 🇦🇺 Australia (2 048 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Degree
- 1 unique BGP neighbor
- Reach
- 0 networks in customer cone
Upstream Providers (1)
- AS209 — CENTURYLINK-US-LEGACY-QWEST
Prefix Lists
IPv4 Prefixes (5 total)
- 204.193.208.0/20 (4 096 addresses (/20 prefix))
- 8.64.40.0/21 (2 048 addresses (/21 prefix))
- 65.123.252.0/23 (512 addresses (/23 prefix))
- 67.13.228.0/24 (256 addresses (/24 prefix))