AS22561 — CENTURYLINK-LEGACY-LIGHTCORE

AS22561 announces 317 IPv4 prefixes covering 1,216,512 addresses and 0 IPv6 prefixes.

About this network

CENTURYLINK-LEGACY-LIGHTCORE is operated by CenturyLink Communications, LLC.

What it's used for

• The address space carries residential and business access traffic, evidenced by reverse DNS records pointing to dyn.centurytel.net and netnames such as CENTURYLINK-LEGACY-CENTURYTEL-NETBLOCK11.
• The AS announces 1,211,904 IPv4 addresses across 429 prefixes, while maintaining only 14 observed neighbours, a ratio indicative of an access network rather than a transit provider.

Notable

• All sampled registrants are listed as CenturyLink Communications, LLC, consistent with the AS holder.
• CenturyLink merged with Lumen Technologies in 2020, after which the company was renamed Lumen Technologies, Inc., though this AS retains the legacy CenturyLink/LightCore designation.
• The inventory consists of 429 IPv4 prefixes with no IPv6 prefixes announced, reflecting a legacy IPv4-centric estate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 64.40.72.0/23
• 64.40.74.0/24
• 64.40.78.0/23
• 64.40.88.0/21
• 64.89.100.0/22
• 64.89.104.0/23
• 64.89.108.0/24
• 64.89.110.0/24
• 64.89.112.0/23
• 64.89.118.0/23
• 64.89.120.0/22
• 64.89.124.0/23
• 64.89.127.0/24
• 64.91.0.0/20
• 64.91.16.0/21
• 64.91.24.0/23
• 64.91.26.0/24
• 64.91.28.0/22
• 64.91.32.0/20
• 64.91.48.0/22
• 64.91.52.0/24
• 64.91.54.0/23
• 64.91.56.0/23
• 64.91.59.0/24
• 64.91.60.0/22
• 64.91.64.0/20
• 64.91.84.0/22
• 64.91.88.0/21
• 64.91.96.0/23
• 64.91.99.0/24
• 64.91.100.0/22
• 64.91.106.0/23
• 64.91.108.0/24
• 64.91.110.0/23
• 64.91.112.0/21
• 64.91.120.0/22
• 64.91.126.0/24
• 64.200.212.0/24
• 64.238.224.0/23
• 64.238.227.0/24
• 64.238.229.0/24
• 64.238.230.0/24
• 64.238.232.0/21
• 64.238.241.0/24
• 64.238.242.0/24
• 64.238.244.0/22
• 64.238.248.0/23
• 64.238.250.0/24
• 64.238.252.0/22
• 66.79.5.0/24
• 66.79.8.0/22
• 66.79.15.0/24
• 66.79.16.0/20
• 66.79.32.0/20
• 66.79.48.0/22
• 66.79.52.0/23
• 66.79.58.0/23
• 66.79.64.0/22
• 66.79.68.0/23
• 66.79.72.0/22
• 66.79.89.0/24
• 66.79.90.0/23
• 66.79.92.0/22
• 66.112.0.0/18
• 66.112.64.0/21
• 66.112.72.0/22
• 66.112.80.0/20
• 66.112.96.0/21
• 66.112.104.0/23
• 66.112.107.0/24
• 66.112.108.0/22
• 66.112.112.0/20
• 66.208.135.0/24
• 66.208.136.0/24
• 66.208.140.0/22
• 66.208.144.0/23
• 66.208.148.0/24
• 66.208.152.0/24
• 66.208.156.0/22
• 66.208.162.0/23
• 66.208.169.0/24
• 66.208.171.0/24
• 66.208.173.0/24
• 66.208.174.0/23
• 66.208.176.0/23
• 66.208.184.0/24
• 66.208.187.0/24
• 66.211.32.0/20
• 66.211.48.0/21
• 66.211.56.0/22
• 66.211.61.0/24
• 66.211.62.0/23
• 66.242.228.0/22
• 66.242.232.0/24
• 66.242.234.0/24
• 66.242.238.0/23
• 66.242.244.0/22
• 66.242.248.0/22
• 66.249.32.0/20
• 66.249.60.0/23

and 217 more.

Upstream networks

• AS209 CenturyLink Communications, LLC

Downstream networks

• AS2379 CenturyLink Communications, LLC
• AS11398 CenturyLink Communications, LLC
• AS6222 CenturyLink Communications, LLC
• AS23126 CenturyLink Communications, LLC
• AS14905 CenturyLink Communications, LLC
• AS5778 CenturyLink Communications, LLC
• AS4282 CenturyLink Communications, LLC
• AS13787 CenturyLink Communications, LLC
• AS22186 CenturyLink Communications, LLC
• AS4284 CenturyLink Communications, LLC
• AS4283 CenturyLink Communications, LLC
• AS16835 CenturyLink Communications, LLC

Adjacent networks

• AS209 CenturyLink Communications, LLC
• AS2379 CenturyLink Communications, LLC
• AS11398 CenturyLink Communications, LLC
• AS6222 CenturyLink Communications, LLC
• AS23126 CenturyLink Communications, LLC
• AS14905 CenturyLink Communications, LLC
• AS5778 CenturyLink Communications, LLC
• AS4282 CenturyLink Communications, LLC
• AS13787 CenturyLink Communications, LLC
• AS4283 CenturyLink Communications, LLC
• AS4284 CenturyLink Communications, LLC
• AS22186 CenturyLink Communications, LLC
• AS16835 CenturyLink Communications, LLC