All ASNs

Autonomous System details for AS3561

AS3561

CenturyLink Communications, LLC • centurylink.com

AS3561 — CenturyLink Communications, LLC

AS Name

CENTURYLINK-LEGACY-SAVVIS

Country

United States (US)

Website

centurylink.com

Number of IPv4

7,449,856

Number of IPv6

9.67 × 10²⁴

ASN type

ISP

Status

Assigned

Registry

ARIN

Allocated

October 07, 1998

Last updated

November 15, 2018

IP Ranges

621 IPv4 prefixes, 2 IPv6 prefixes

Prefix	Company	Number of IPs
5.157.164.0/22	INTELI TECH DEVELOPMENT SRL	1,024
23.26.202.0/24	Allstream Business US, LLC	256
23.230.194.0/24	EGIHosting	256
23.230.243.0/24	EGIHosting	256
45.38.5.0/24	Subnet Digital LLC	256
45.38.28.0/24	Subnet Digital LLC	256
45.38.49.0/24	Subnet Digital LLC	256
45.38.61.0/24	Subnet Digital LLC	256
45.38.66.0/24	Subnet Digital LLC	256
45.38.71.0/24	Subnet Digital LLC	256
45.38.108.0/24	Subnet Digital LLC	256
45.38.144.0/24	Subnet Digital LLC	256
45.38.147.0/24	Subnet Digital LLC	256
45.38.172.0/24	Subnet Digital LLC	256
45.38.247.0/24	Subnet Digital LLC	256
45.38.250.0/24	Subnet Digital LLC	256
45.39.54.0/24	Subnet Digital LLC	256
45.39.61.0/24	Subnet Digital LLC	256
45.39.68.0/24	Cyberzone S.A	256
45.39.88.0/24	Epigraph	256
45.39.89.0/24	Subnet Digital LLC	256
45.39.97.0/24	SSL Private Proxy	256
45.39.133.0/24	Subnet Digital LLC	256
45.39.160.0/24	Subnet Digital LLC	256
45.39.177.0/24	Subnet Digital LLC	256
45.39.193.0/24	Subnet Digital LLC	256
46.151.36.0/22	Segna Technologies	1,024
50.114.32.0/24	Allstream Business US, LLC	256
50.114.165.0/24	Allstream Business US, LLC	256
50.114.173.0/24	Allstream Business US, LLC	256
50.114.210.0/24	Allstream Business US, LLC	256
50.117.28.0/24	EGIHosting	256
50.117.44.0/24	EGIHosting	256
50.117.64.0/24	EGIHosting	256
50.117.73.0/24	EGIHosting	256
50.117.97.0/24	EGIHosting	256
50.117.100.0/24	EGIHosting	256
50.117.105.0/24	EGIHosting	256
50.118.215.0/24	EGIHosting	256
62.216.64.0/21	RoSite Equipment SRL	2,048
63.128.0.0/16	CenturyLink Communications, LLC	65,536
63.128.0.0/18	CenturyLink Communications, LLC	16,384
63.128.64.0/18	CenturyLink Communications, LLC	16,384
63.128.85.0/24	CenturyLink Communications, LLC	256
63.128.88.0/24	CenturyLink Communications, LLC	256
63.128.128.0/18	CenturyLink Communications, LLC	16,384
63.136.0.0/18	CenturyLink Communications, LLC	16,384
63.136.4.0/24	CenturyLink Communications, LLC	256
63.136.64.0/19	CenturyLink Communications, LLC	8,192
63.136.96.0/20	CenturyLink Communications, LLC	4,096
63.136.120.0/21	CenturyLink Communications, LLC	2,048
63.136.128.0/17	CenturyLink Communications, LLC	32,768
63.137.0.0/16	CenturyLink Communications, LLC	65,536
63.137.32.0/20	CenturyLink Communications, LLC	4,096
63.137.64.0/20	CenturyLink Communications, LLC	4,096
63.137.112.0/20	CenturyLink Communications, LLC	4,096
63.137.126.0/24	CenturyLink Communications, LLC	256
63.137.176.0/21	CenturyLink Communications, LLC	2,048
63.137.224.0/20	CenturyLink Communications, LLC	4,096
63.146.199.0/24	CenturyLink Communications, LLC	256
63.235.144.0/24	CenturyLink Communications, LLC	256
64.14.0.0/16	CenturyLink Communications, LLC	65,536
64.14.0.0/19	CenturyLink Communications, LLC	8,192
64.14.32.0/19	MetLife	8,192
64.14.64.0/19	CenturyLink Communications, LLC	8,192
64.14.96.0/20	CenturyLink Communications, LLC	4,096
64.14.112.0/20	CenturyLink Communications, LLC	4,096
64.14.128.0/20	CenturyLink Communications, LLC	4,096
64.14.144.0/21	PR Newswire Association LLC	2,048
64.14.160.0/19	CenturyLink Communications, LLC	8,192
64.14.192.0/20	CenturyLink Communications, LLC	4,096
64.14.201.0/24	CenturyLink Communications, LLC	256
64.14.208.0/20	CenturyLink Communications, LLC	4,096
64.14.224.0/20	CenturyLink Communications, LLC	4,096
64.14.240.0/20	CenturyLink Communications, LLC	4,096
64.15.160.0/19	Border Construction Specialties, LLC	8,192
64.15.192.0/20	CenturyLink Communications, LLC	4,096
64.15.224.0/19	CenturyLink Communications, LLC	8,192
64.15.225.0/24	CenturyLink Communications, LLC	256
64.22.128.0/19	CenturyLink Communications, LLC	8,192
64.27.160.0/20	CenturyLink Communications, LLC	4,096
64.28.64.0/19	CenturyLink Communications, LLC	8,192
64.29.68.0/22	NetEnterprise Inc.	1,024
64.29.72.0/22	NetEnterprise Inc.	1,024
64.29.76.0/24	NetEnterprise Inc.	256
64.29.84.0/22	NetEnterprise Inc.	1,024
64.29.89.0/24	NetEnterprise Inc.	256
64.29.94.0/24	NetEnterprise Inc.	256
64.37.192.0/18	CenturyLink Communications, LLC	16,384
64.39.32.0/19	CenturyLink Communications, LLC	8,192
64.41.128.0/17	CenturyLink Communications, LLC	32,768
64.56.192.0/20	CenturyLink Communications, LLC	4,096
64.58.64.0/19	CenturyLink Communications, LLC	8,192
64.68.64.0/19	CenturyLink Communications, LLC	8,192
64.70.0.0/18	CenturyLink Communications, LLC	16,384
64.70.64.0/19	Zerolag Communications, Inc.	8,192
64.70.96.0/20	CenturyLink Communications, LLC	4,096
64.70.102.0/24	CenturyLink Communications, LLC	256
64.75.0.0/18	CenturyLink Communications, LLC	16,384
64.79.160.0/20	CenturyLink Communications, LLC	4,096
2001:460:78::/46	CenturyLink Communications, LLC	4.84 × 10²⁴
2001:460:100::/46	CenturyLink Communications, LLC	4.84 × 10²⁴

This table only shows the first 100 of the set of IPv4 and IPv6 prefixes. All data is available via our IP data API.

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS3561

2 peers

AS7991 AS58057

AS3561 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS3561

3 upstreams

AS209 AS3356 AS3910

AS3561 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS3561 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS3561

53 downstreams

AS6989 AS7761 AS10959 AS13458 AS13494 AS14109 AS14524 AS14688 AS15349 AS19701 AS20391 AS21563 AS21622 AS22064 AS22157 AS22283 AS23147 AS26158 AS29457 AS32988 AS33717 AS36433 AS36539 AS39965 AS40026 AS40685 AS40695 AS40946 AS46160 AS46263 AS46269 AS46680 AS46885 AS53288 AS53687 AS54262 AS54645 AS54697 AS62224 AS62520 AS62827 AS63427 AS64212 AS201493 AS393697 AS393738 AS393888 AS394463 AS394792 AS395952 AS396167 AS396204 AS397323

AS3561 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.