Editing Tier 1 network (section)

==List of Tier 1 networks==
These networks are universally recognized as Tier 1 networks, because they can reach the entire internet ([[IPv4]] and [[IPv6]]) via settlement-free peering. The CAIDA AS rank is a rank of importance on the internet.<ref name="CAIDA AS ranking" />

{| class="wikitable sortable"
|-
!Name
!Headquarters
![[Autonomous system (Internet)|AS number]]
! data-sort-type="number" |CAIDA AS rank<ref name="CAIDA AS ranking">[https://asrank.caida.org CAIDA AS Rank]</ref>
! data-sort-type="number" |Fiber route (km) 
!Peering policy
|-
|[[AT&T]]<ref>{{cite web|url=https://asrank.caida.org/asns?asn=7018|title=AS Rank: AS7018 (AT&T Services, Inc.)|access-date=2022-08-08}}</ref>
|{{flag|United States|name=United States}}
|7018
|29
|660,000<ref>{{Cite web|url=http://www.att.com/gen/general?pid=7462|title=AT&T Communications Inc}}</ref>
|[http://www.corp.att.com/peering/ AT&T Peering policy]
|-
|[[Deutsche Telekom#Deutsche Telekom Global Carrier|Deutsche Telekom Global Carrier]]<ref>{{cite web|url=https://asrank.caida.org/asns?asn=3320|title=AS Rank: AS3320 (Deutsche Telekom AG)|access-date=2020-10-26}}</ref>
|{{flag|Germany|name=Germany}}
|3320
|17
|250,000<ref>{{cite web|url=https://globalcarrier.telekom.com/business-areas/internet-content|title=Internet and Contents|date=6 January 2025 }}</ref>
|[https://www.peeringdb.com/asn/3320 DTAG Peering Details]
|-
|[[GTT Communications]]
|{{flag|United States|name=United States}}
|3257
|4
|232,934<ref>{{Cite web |url=https://www.gtt.net/wp-content/uploads/2017/02/GTT-Investor-Presentation-February-2017.pdf |title=Investor Presentation |access-date=2017-11-18 |archive-date=2017-12-01 |archive-url=https://web.archive.org/web/20171201042822/https://www.gtt.net/wp-content/uploads/2017/02/GTT-Investor-Presentation-February-2017.pdf |url-status=dead }}</ref><ref name=":0">{{cite web|url=https://www.bloombergquint.com/business/gtt-buys-interoute-for-2-3-billion-to-gain-europe-fiber-network|title=GTT Buys Interoute for $2.3 Billion to Gain Europe Fiber Network|website=BloombergQuint|date=26 February 2018 |access-date=2019-02-05}}</ref>
|[http://www.gtt.net/peering/ GTT Peering Policy]
|-
|[[Liberty Global]]<ref>{{cite web|url=http://bgp.he.net/AS6830#_graph4|title=AS6830 IPv4 route propagation|access-date=2020-10-26}}</ref><ref>{{cite web|url=https://asrank.caida.org/asns?asn=6830|title=CAIDA AS Rank|access-date=2020-10-26}}</ref>
|{{flag|Netherlands|name=Netherlands}}<ref>{{Cite web|url=http://www.libertyglobal.com/about-us-contact-us.aspx|title = Contact}}</ref>
|6830
|26
|800,000<ref>{{cite web|title=Liberty Global {{!}} largest international cable company|url=http://www.libertyglobal.com/index.html|website=www.libertyglobal.com|access-date=15 August 2017|archive-url=https://web.archive.org/web/20170809184226/http://www.libertyglobal.com/index.html|archive-date=2017-08-09|url-status=dead}}</ref>
|[https://www.libertyglobal.com/operations/business-services/global-peering-principles/ Peering Principles]
|-
|[[Lumen Technologies]] (formerly [[CenturyLink]], formerly [[Level 3 Communications|Level 3]])<ref name=":1">{{cite web|url=http://news.centurylink.com/2017-11-01-CenturyLink-completes-acquisition-of-Level-3|title=CenturyLink completes acquisition of Level 3|website=MediaRoom|access-date=2019-01-22}}</ref><ref name=":2">{{cite web|url=https://asrank.caida.org/asns?asn=209|title=CAIDA AS Rank|date=2016-09-01|access-date=2016-09-01}}</ref><ref name=":5">{{cite web|title=CenturyLink Transforms, Rebrands as Lumen®|url=https://ir.lumen.com/news/news-details/2020/CenturyLink-Transforms-Rebrands-as-Lumen/default.aspx|access-date=2020-10-21|website=ir.lumen.com|language=en-US}}</ref>
|{{flag|United States|name=United States}}
|3356
|1
|885,139<ref name=":3">{{cite press release|url=https://www.prnewswire.com/news-releases/centurylink-completes-largest-deployment-of-gfast-technology-in-north-america-300325687.html|title=CenturyLink completes largest deployment of G.fast technology in North America|author=CenturyLink, Inc.|website=www.prnewswire.com|language=en|access-date=2019-01-22}}</ref><ref name=":4">{{Cite web |url=http://www.level3.com/~/media/files/brochures/en_dataserv_br_secureinternetservices.pdf |title=Level 3® Internet Services |access-date=2016-09-06 |archive-date=2016-10-20 |archive-url=https://web.archive.org/web/20161020133804/http://www.level3.com/~/media/files/brochures/en_dataserv_br_secureinternetservices.pdf |url-status=dead }}</ref>
|[https://www.lumen.com/en-us/about/legal/peering-policy.html Lumen Peering Policy]
|-
|[[NTT Communications]] (formerly [[Verio]])<ref>{{cite web|url=https://asrank.caida.org/asns?asn=2914|title=CAIDA AS Rank|access-date=2020-10-26}}</ref>
|{{flag|Japan|name=Japan}}
|2914
|5
|{{dunno}}
|[https://www.gin.ntt.net/support-center/policies-procedures/routing/ Global Peering Policy]
|-
|[[Orange Group|Orange]]<ref>{{cite web|url=https://internationalcarriers.orange.com/en/offers/ip-transit.html|title=AS Rank: AS5511 (Orange S.A.)|access-date=2020-10-26}}</ref>
|{{flag|France|name=France}}
|5511
|11
|495,000 <ref>{{cite web|url=https://wholesale.orange.com/international/en/our-networks/orange-global-networks.html|title=450 000 km of submarine cables + 45 000 km terrestrial networks}}</ref>
|[https://www.peeringdb.com/asn/5511 OTI peering policy]
|-
|[[PCCW|PCCW Global]]
|{{flag|Hong Kong|name=Hong Kong}}
|3491
|10
|{{dunno}}
|[https://www.peeringdb.com/asn/3491 Peering policy]
|-
|[[Tata Communications]] (prev. [[VSNL]] prev. [[VSNL International Canada|Teleglobe]])<ref>{{cite web|url=https://asrank.caida.org/asns?asn=6453|title=AS Rank: AS6453 (TATA COMMUNICATIONS (AMERICA) INC)|access-date=2020-10-26}}</ref>
|{{flag|India|name=India}}
|6453
|6
|700,000<ref>{{Cite web|url=http://www.tatacommunications.com/glance/our-network|title = Tata Communications &#124; Digital Ecosystem Enabler}}</ref>
|[https://www.peeringdb.com/asn/6453 Peering Policy]
|-
|[[Telecom Italia Sparkle]] (Seabone)<ref>{{cite web|url=https://asrank.caida.org/asns?asn=6762|title=AS Rank: AS6762 (Telecom Italia S.p.A.)|access-date=2020-10-26}}</ref>
|{{flag|Italy|name=Italy}}
|6762
|8
|560,000
|[https://www.peeringdb.com/asn/6762 Peering Policy]
|-
|[[Arelion]] (formerly [[Telia Carrier]])<ref>{{cite web|url=https://asrank.caida.org/asns?asn=1299|title=AS Rank: AS1299 (Telia Company AB)|access-date=2020-10-26}}</ref>
|{{flag|Sweden|name=Sweden}}
|1299
|2
|70,000<ref>{{cite web |title=Arelion |url=https://www.arelion.com/about-us.html |access-date=2022-10-31 |website=Arelion}}</ref>
|[https://www.arelion.com/dam/jcr:58bcf8cb-7cd2-4108-a5d9-e65bc2a01bb5/Arelion%20%20Peering%20Policy%20Clean%20(12.22.pdf Arelion's IP Network Peering Policy]
|-
|[[Telxius]] (Subsidiary of {{lang|es|[[Telefónica]]|italic=no}})<ref>{{cite web|url=https://asrank.caida.org/asns?asn=12956|title=AS Rank: AS12956 (Telefonica International Wholesale Services II, S.L.U.)|access-date=2020-10-26}}</ref>
|{{flag|Spain|name=Spain}}
|12956
|15
|65,000<ref>{{Cite web | url=http://telxius.com/wp-content/uploads/2016/12/Fichas_Telxius_Capacity-Services.pdf | title=Capacity Services | publisher=Telxius | access-date=2024-08-11 | website=telxius.com}}</ref>
|[https://telxius.com/wp-content/uploads/2017/08/Peering-policy-Telxius.pdf Peering Policy]
|-
|[[Verizon|Verizon Enterprise Solutions]] (formerly [[UUNET]]){{refn|<ref name="fiercetelecom.com">{{Cite web|url=http://www.fiercetelecom.com/telecom/after-delay-verizon-wraps-1-8b-xo-acquisition-deepens-metro-fiber-density-45-markets|title = After delay, Verizon wraps $1.8B XO acquisition, deepening metro fiber density in 45 markets| date=February 2017 }}</ref><ref name="asrank.caida.org">{{cite web|url=https://asrank.caida.org/asns?asn=701|title=AS Rank: AS701 (MCI Communications Services, Inc. d/b/a Verizon Business) |access-date=2020-10-26}}</ref><ref name="AS Rank: AS702 MCI Communications">{{cite web|url=https://asrank.caida.org/asns?asn=702|title=AS Rank: AS702 (MCI Communications Services, Inc. d/b/a Verizon Business)|access-date=2020-10-26}}</ref><ref name="AS Rank: AS703 MCI Communications">{{cite web|url=https://asrank.caida.org/asns?asn=703|title=AS Rank: AS703 (MCI Communications Services, Inc. d/b/a Verizon Business)|access-date=2020-10-26}}</ref>}}
|{{flag|United States|name=United States}}
|701
|25
|805,000<ref>{{cite web|url=https://www22.verizon.com/wholesale/productguide/voice_services/when-you-need-quality-reliability-and-a-global-presence-trust-verizon-global-wholesale-for-all-of-your-voice-services-requirements.html|title=When you need quality, reliability and a global presence, trust Verizon Partner Solutions for all of your VOICE SERVICES requirements|website=www22.verizon.com|access-date=2019-01-22}}</ref>
|[http://www.verizonenterprise.com/terms/peering/ Verizon UUNET Peering policy 701, 702, 703]
|-
|[[Zayo Group]] (formerly [[AboveNet]])<ref>{{cite web|url=https://asrank.caida.org/asns?asn=6461|title=AS Rank: AS6461 (Zayo Bandwidth)|access-date=2020-10-26}}</ref>
|{{flag|United States|name=United States}}
|6461
|9
|196,339<ref>{{cite web|url=https://www.zayo.com/services/dark-fiber/|title=Network Solutions Provider - Dark Fiber Network |publisher=Zayo Group|language=en-US|access-date=2019-01-22}}</ref>
|[https://peeringdb.com/asn/6461 Zayo Peering Policy]
|}

While most of these Tier 1 providers offer global coverage (based on the published network map on their respective public websites), there are some which are restricted geographically. However these do offer global coverage for mobiles and IP-VPN type services which are unrelated to being a Tier 1 provider.

A 2008 report shows Internet traffic relying less on U.S. networks than previously.<ref>{{cite news|url=https://www.nytimes.com/2008/08/30/business/30pipes.html?pagewanted=all|work=New York Times|title=Internet Traffic Begins to Bypass the US|first=John|last=Markoff|date=2008-08-30}}</ref>