AS3561
CenturyLink Communications, LLC
ASN
AS3561
Country
United States
IPv4 addresses
6,446,880
Prefixes (IPv4 / IPv6)
1,203 / 2
ASN Information
- ASN Number
- AS3561
- AS Name
- CenturyLink Communications, LLC
- Country
- United States
- IPv4 addresses
- 6,446,880
- IPv4 prefixes
- 1,203
- IPv6 prefixes
- 2
VPN & datacenter signals
- Known VPN prefixes
- 1
- Known datacenter prefixes
- 1,184
Counted from public VPN and datacenter lists. Check individual IPs with the API.
Largest announced prefixes
- 216.90.0.0/15
- 208.148.0.0/15
- 208.146.0.0/15
- 208.134.0.0/15
- 207.0.0.0/15
- 206.100.0.0/15
- 66.101.0.0/16
- 64.243.0.0/16
- 206.26.0.0/16
- 206.102.0.0/16
Source: public routing and registration data, updated 2026-10-28.
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