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HomeCompaniesCenturyLink Communications, LLC
ISP

CenturyLink Communications, LLC

CenturyLink Communications, LLC uses 6,657,540 IPv4 addresses in 4,646 ranges, and 23 IPv6 ranges, by the registry records IP Company reads.

centurylink.com·United States

6,657,540
IPv4 addresses
4,646
IPv4 ranges
23
IPv6 ranges
102
ASes it operates
13
countries

About the company

Who it is, where it is registered and who owns it.

Description
American company
Founded
1985
Headquarters
Frankfurt
Industry
telecommunications industry
Listed
NYSE: LVLT

Who routes its space

The networks announcing its IPv4, by the addresses each announces.

  1. AS19901 Brightspeed1,693,181 · 25.43%
  2. AS22561 CenturyLink Communications, LLC1,153,160 · 17.32%
  3. AS2379 CenturyLink Communications, LLC400,913 · 6.02%
  4. AS11398 CenturyLink Communications, LLC84,292 · 1.27%
  5. AS17402 CenturyLink Communications, LLC66,168 · 0.99%
  6. AS14921 CenturyLink Communications, LLC55,125 · 0.83%
  7. AS6222 CenturyLink Communications, LLC50,654 · 0.76%
  8. AS3356 Level 3 Parent, LLC25,093 · 0.38%
  9. AS4911 CenturyLink Communications, LLC16,384 · 0.25%
  10. AS7359 CenturyLink Communications, LLC14,591 · 0.22%
  11. AS4015 CenturyLink Communications, LLC14,336 · 0.22%
  12. AS16941 CenturyLink Communications, LLC13,839 · 0.21%

Where its space is

Its IPv4 that IP Geolocation places, by country. A /24 counts for the company using most of it.

top 12 of 13
  1. United States6,715,392 · 99.98%
  2. Canada768 · 0.01%
  3. United Kingdom488 · 0.01%
  4. Hong Kong104 · 0.00%
  5. Macao56 · 0.00%
  6. Germany32 · 0.00%
  7. Laos24 · 0.00%
  8. Belgium16 · 0.00%
  9. Poland16 · 0.00%
  10. Czechia8 · 0.00%
  11. Georgia8 · 0.00%
  12. Niger8 · 0.00%

Networks it operates

The autonomous systems registered under its domain, by the IPv4 each announces anywhere.

top 50 of 102
ASNNAMETYPEREGISTEREDIPV4
AS22561CenturyLink Communications, LLCISPUnited States1,220,608
AS2379CenturyLink Communications, LLCISPUnited States547,840
AS203Level 3 Parent, LLCISPUnited States233,792
AS11398CenturyLink Communications, LLCISPUnited States121,088
AS17402CenturyLink Communications, LLCISPUnited States68,864
AS14921CenturyLink Communications, LLCISPUnited States61,440
AS6222CenturyLink Communications, LLCISPUnited States59,136
AS4911CenturyLink Communications, LLCISPUnited States16,384
AS16941CenturyLink Communications, LLCISPUnited States15,616
AS7359CenturyLink Communications, LLCISPUnited States14,592
AS4015CenturyLink Communications, LLCISPUnited States14,336
AS3910CenturyLink Communications, LLCISPUnited States13,568
AS22186CenturyLink Communications, LLCISPUnited States13,312
AS393789CenturyLink Communications, LLCISPUnited States13,312
AS23126CenturyLink Communications, LLCISPUnited States8,960
AS3909CenturyLink Communications, LLCISPUnited States6,912
AS4282CenturyLink Communications, LLCISPUnited States5,888
AS4283CenturyLink Communications, LLCISPUnited States4,864
AS4284CenturyLink Communications, LLCISPUnited States4,608
AS13787CenturyLink Communications, LLCISPUnited States3,328
AS6223CenturyLink Communications, LLCISPUnited States2,560
AS5778CenturyLink Communications, LLCISPUnited States1,792
AS7191CenturyLink Communications, LLCISPUnited States1,536
AS202Level 3 Parent, LLCISPUnited States1,024
AS4297CenturyLink Communications, LLCISPUnited States1,024
AS7988CenturyLink Communications, LLCISPUnited States768
AS596Level 3 Parent, LLCISPUnited States512
AS6224CenturyLink Communications, LLCISPUnited States256
AS16835CenturyLink Communications, LLCISPUnited States256
AS199Level 3 Parent, LLCISPUnited States0
AS201Level 3 Parent, LLCISPUnited States0
AS594Level 3 Parent, LLCISPUnited States0
AS595Level 3 Parent, LLCISPUnited States0
AS597Level 3 Parent, LLCISPUnited States0
AS598Level 3 Parent, LLCISPUnited States0
AS3447CenturyLink Communications, LLCISPUnited States0
AS3508Level 3 Parent, LLCISPUnited States0
AS3908CenturyLink Communications, LLCISPUnited States0
AS3951CenturyLink Communications, LLCISPUnited States0
AS4048CenturyLink Communications, LLCISPUnited States0
AS4212CenturyLink Communications, LLCISPUnited States0
AS4281CenturyLink Communications, LLCISPUnited States0
AS4285CenturyLink Communications, LLCISPUnited States0
AS4287CenturyLink Communications, LLCISPUnited States0
AS4288CenturyLink Communications, LLCISPUnited States0
AS4289CenturyLink Communications, LLCISPUnited States0
AS4290CenturyLink Communications, LLCISPUnited States0
AS4291CenturyLink Communications, LLCISPUnited States0
AS4292CenturyLink Communications, LLCISPUnited States0
AS4293CenturyLink Communications, LLCISPUnited States0

How its networks peer

Each network's peering policy, traffic, ratio and reach as its operator states them, with the internet exchanges and facilities it is at.

ASNPOLICYTRAFFICRATIOSCOPEEXCHANGESFACILITIES
AS22561SelectiveMostly InboundNorth America08
AS19900

Facilities

The datacenters and colocation sites its networks are in: 8 in one country.

FACILITYWHERE
Equinix DC1-DC15,DC21-DC22 - AshburnAshburn, United States
CoreSite - Atlanta (AT1)Atlanta, United States
Digital Realty CHI (350 E Cermak)Chicago, United States
Equinix CH1/CH2/CH4 - ChicagoChicago, United States
Equinix DA1 - DallasDallas, United States
Equinix MI1 - Miami, NOTAMiami, United States
Equinix SV1/SV5/SV10 - Silicon Valley, San JoseSan Jose, United States
Digital Realty Seattle SEA10Seattle, United States

What the databases see

Addresses each address-keyed database holds in its IPv4, as a share of it, with the largest providers. A /24 counts for the company using most of it; counts overlap.

Speed tests

Speeds measured from its space in the last 90 days.

From M-Lab
20.9 Mbps
median download
7.0 Mbps
median upload
13,665
download tests
13,246
upload tests

Its address ranges

Its largest IPv4 ranges, then its IPv6 ones, as IP Company draws them, with the network announcing each.

first 100 of 4,669
RANGEIPV4ORIGIN
208.152.0.0/14262,144
148.156.216.0-148.158.255.255141,312
151.116.0.0/15131,072
208.128.0.0/15131,072
208.164.0.0/15131,072
75.120.0.0/15131,072AS22561
67.12.0.0-67.13.227.255123,904
184.156.16.0-184.157.239.255122,880AS22561
206.97.128.0/17206.98.0.0/1698,304
148.155.0.0/16148.156.0.0/18148.156.64.0/1990,112
67.6.0.0/1667.7.0.0/1973,728AS19901
75.170.0.0/1675.171.0.0/2266,560AS19901
150.159.0.0/1665,536
151.118.0.0/1665,536
151.119.0.0/1665,536
159.78.0.0/1665,536
174.19.0.0/1665,536AS19901
184.100.0.0/1665,536AS19901
204.189.0.0/1665,536
206.30.0.0/1665,536
207.124.0.0/1665,536
207.149.0.0/1665,536
207.3.0.0/1665,536
207.51.0.0/1665,536
208.139.0.0/1665,536
208.162.0.0/1665,536
208.171.0.0/1665,536
209.176.0.0/1665,536
63.129.0.0/1665,536
66.86.0.0/1665,536
71.210.0.0/1665,536AS19901
71.213.0.0/1665,536AS19901
71.217.0.0/1665,536AS19901
71.219.0.0/1665,536AS19901
71.221.0.0/1665,536AS19901
75.165.0.0/1665,536AS19901
75.173.0.0/1665,536AS19901
97.114.0.0/1665,536AS19901
99.195.0.0/1799.195.128.0/1899.195.192.0/1957,344AS22561
206.154.56.0/21206.154.64.0/18206.154.128.0/1751,200
173.202.0.0/17173.202.128.0/1849,152AS22561
174.30.0.0/17174.30.128.0/1849,152AS19901
184.102.32.0-184.102.223.25549,152AS19901
67.234.0.0/1767.234.128.0/1849,152AS19901
137.107.66.0-137.107.255.25548,640
137.106.0.0/17137.106.128.0/19137.106.160.0/2241,984
98.125.0.0/1798.125.128.0/1940,960AS22561
137.106.173.0-137.107.63.25537,632
130.13.0.0/1732,768
155.70.128.0/1732,768
174.24.128.0/1732,768AS19901
184.97.0.0/1732,768AS19901
206.153.128.0/1732,768
206.29.0.0/1732,768
208.132.128.0/1732,768
208.166.128.0/1732,768
209.102.0.0/1732,768
67.238.128.0/1732,768AS19901
71.222.128.0/1732,768AS19901
99.194.0.0/1732,768AS22561
207.118.59.248-207.118.175.25529,704AS22561
184.157.248.0-184.158.101.25528,160AS22561
208.138.64.0/18208.138.128.0/19208.138.160.0/2126,624
174.25.128.0/18174.25.192.0/1924,576AS19901
206.153.0.0/18206.153.64.0/1924,576
208.132.0.0/18208.132.64.0/1924,576
71.50.128.0/1871.50.192.0/1924,576AS19901
72.160.0.0/1872.160.64.0/1924,576AS22561
130.13.161.0-130.13.255.25524,320
207.119.127.232-207.119.217.15922,968AS22561
184.158.102.88-184.158.191.25522,952AS22561
207.118.244.240-207.119.73.25521,776AS22561
69.179.0.0/1869.179.64.0/2069.179.80.0/2920,488AS22561
184.159.0.0/18184.159.64.0/2020,480AS22561
69.179.102.176-69.179.179.719,544AS22561
148.156.136.0-148.156.207.25518,432
72.160.112.0-72.160.183.25518,432AS22561
184.159.185.36-184.159.255.25518,140AS22561
99.194.128.0/1899.194.192.0/2217,408AS19901
138.210.188.224-138.210.255.25517,184AS2379
184.159.120.31-184.159.185.3416,644AS22561
168.251.0.0/1816,384AS4911
184.158.192.0/1816,384AS19901
184.97.192.0/1816,384AS19901
206.29.192.0/1816,384
208.157.192.0/1816,384
209.44.0.0/1816,384
71.34.192.0/1816,384AS19901
72.160.192.0/1816,384AS22561
75.175.192.0/1816,384AS19901
75.175.64.0/1816,384AS19901
76.3.64.0/1816,384AS19901
97.112.192.0/1816,384AS19901
97.112.64.0/1816,384AS19901
97.127.128.0/1816,384AS19901
209.102.132.0-209.102.191.25515,360AS22561
76.0.192.0/1976.0.224.0/2076.0.240.0/2114,336AS11398
98.125.192.0/1998.125.224.0/2098.125.240.0/2114,336AS22561
69.29.189.16-69.29.240.4713,088AS22561
208.138.205.198-208.138.253.25512,346

Names it registers under

The holder names its registry records give, by the IPv4 under each.

  1. CenturyLink Communications, LLC6,652,794 · 99.93%
  2. Level 3 Parent, LLC3,070 · 0.05%
  3. CENTURYLINK, INC.512 · 0.01%
  4. 21st Century ONC Therapy296 · 0.00%
  5. 21St Century ONC Therapy256 · 0.00%
  6. CenturyLink Europe Network BB256 · 0.00%
  7. CenturyLink Communications LLC104 · 0.00%
  8. CENTURYLINK COMMUNICATIONS LLC100 · 0.00%
  9. 21st Century Financial Systems Inc.64 · 0.00%
  10. CENTURYLINK COMMUNICATIONS, LLC32 · 0.00%
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