Autonomous System
AS3356 · Level 3 Parent, LLC
Overview
AS3356 is announced on the Internet: RIPE RIS route collectors currently see 946 IPv4 prefixes and 128 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 28,861,952 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 189 upstream neighbours (transit providers or peers) and 6,555 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), NTT America, Inc. (AS2914), and Hurricane Electric LLC (AS6939). AS3356 was assigned by ARIN, and its registration country is United States.
Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:53 PM UTC. This page is refreshed at most every 12 hours.
Go further
The trace goes to 4.0.0.1, the first address of 4.0.0.0/9. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.
Announced prefixes
IPv4 prefixes (946 prefixes)
| Prefix | Addresses |
|---|---|
| 4.0.0.0/9 | 8,388,608 |
| 4.55.0.0/16 | 65,536 |
| 5.252.72.0/24 | 256 |
| 8.0.0.0/9 | 8,388,608 |
| 8.0.0.0/12 | 1,048,576 |
| 8.6.180.0/24 | 256 |
| 8.11.231.0/24 | 256 |
| 8.15.209.0/24 | 256 |
| 8.16.0.0/12 | 1,048,576 |
| 8.23.133.0/24 | 256 |
| 8.28.160.0/22 | 1,024 |
| 8.29.103.0/24 | 256 |
| 8.32.0.0/12 | 1,048,576 |
| 8.44.210.0/24 | 256 |
| 8.45.136.0/24 | 256 |
| 8.48.0.0/12 | 1,048,576 |
| 8.51.0.0/18 | 16,384 |
| 8.64.0.0/12 | 1,048,576 |
| 8.192.0.0/12 | 1,048,576 |
| 8.224.0.0/14 | 262,144 |
| 8.236.0.0/15 | 131,072 |
| 8.238.0.0/15 | 131,072 |
| 8.240.0.0/12 | 1,048,576 |
| 8.240.220.0/24 | 256 |
| 8.241.98.0/24 | 256 |
| 8.241.141.0/24 | 256 |
| 8.241.142.0/24 | 256 |
| 8.241.144.0/24 | 256 |
| 8.241.174.0/24 | 256 |
| 8.241.175.0/24 | 256 |
| 8.241.176.0/24 | 256 |
| 8.241.177.0/24 | 256 |
| 8.241.178.0/24 | 256 |
| 8.242.0.0/17 | 32,768 |
| 8.242.0.0/19 | 8,192 |
| 8.242.32.0/19 | 8,192 |
| 8.242.68.0/22 | 1,024 |
| 8.242.68.0/23 | 512 |
| 8.242.71.0/24 | 256 |
| 8.242.72.0/21 | 2,048 |
| 8.242.92.0/22 | 1,024 |
| 8.242.245.0/24 | 256 |
| 8.242.246.0/24 | 256 |
| 8.243.0.0/19 | 8,192 |
| 8.243.32.0/19 | 8,192 |
| 8.243.64.0/19 | 8,192 |
| 8.243.96.0/19 | 8,192 |
| 8.243.128.0/20 | 4,096 |
| 8.243.144.0/20 | 4,096 |
| 8.243.160.0/20 | 4,096 |
| 8.243.176.0/20 | 4,096 |
| 8.243.180.0/24 | 256 |
| 8.243.192.0/20 | 4,096 |
| 8.243.207.0/24 | 256 |
| 8.243.208.0/20 | 4,096 |
| 8.243.224.0/20 | 4,096 |
| 8.243.240.0/21 | 2,048 |
| 8.244.0.0/15 | 131,072 |
| 8.245.7.0/24 | 256 |
| 8.247.53.0/24 | 256 |
| 8.247.54.0/24 | 256 |
| 8.253.180.0/24 | 256 |
| 8.253.181.0/24 | 256 |
| 8.253.182.0/24 | 256 |
| 8.253.218.0/24 | 256 |
| 8.253.224.0/24 | 256 |
| 8.253.250.0/24 | 256 |
| 8.254.168.0/24 | 256 |
| 8.255.0.0/16 | 65,536 |
| 8.255.192.0/24 | 256 |
| 8.255.193.0/24 | 256 |
| 8.255.194.0/24 | 256 |
| 23.132.196.0/24 | 256 |
| 23.148.224.0/24 | 256 |
| 23.230.23.0/24 | 256 |
| 23.230.39.0/24 | 256 |
| 23.230.98.0/24 | 256 |
| 23.230.119.0/24 | 256 |
| 23.230.152.0/24 | 256 |
| 23.230.180.0/24 | 256 |
| 23.230.210.0/24 | 256 |
| 23.230.214.0/24 | 256 |
| 24.56.96.0/20 | 4,096 |
| 24.75.0.0/18 | 16,384 |
| 24.75.20.0/24 | 256 |
| 24.75.21.0/24 | 256 |
| 24.75.24.0/23 | 512 |
| 24.75.44.0/22 | 1,024 |
| 24.75.64.0/19 | 8,192 |
| 24.75.128.0/20 | 4,096 |
| 24.75.135.0/24 | 256 |
| 24.75.141.0/24 | 256 |
| 38.84.6.0/23 | 512 |
| 38.159.181.0/24 | 256 |
| 45.39.235.0/24 | 256 |
| 45.39.245.0/24 | 256 |
| 45.39.246.0/24 | 256 |
| 45.39.251.0/24 | 256 |
| 45.89.248.0/24 | 256 |
| 45.89.255.0/24 | 256 |
Showing the first 100 of 946, in address order. Complete list on RIPEstat
IPv6 prefixes (128 prefixes)
| Prefix |
|---|
| 2001:428:3816::/48 |
| 2001:428:5805::/48 |
| 2001:428:6400::/48 |
| 2001:13b0:8013::/48 |
| 2001:13b0:8015::/48 |
| 2001:13b0:8021::/48 |
| 2001:13b0:8029::/48 |
| 2001:13b0:a031::/48 |
| 2001:13b0:a301::/48 |
| 2001:13b0:b900::/48 |
| 2001:13b0:c000::/48 |
| 2001:13b2::/31 |
| 2001:13b2:1::/48 |
| 2001:13b2:8001::/48 |
| 2001:13b2:8002::/48 |
| 2001:13b2:8006::/48 |
| 2001:13b2:8007::/48 |
| 2001:13b2:800a::/48 |
| 2001:13b2:800b::/48 |
| 2001:13b2:800c::/48 |
| 2001:13b2:8011::/48 |
| 2001:13b2:8012::/48 |
| 2001:13b2:8014::/48 |
| 2001:13b2:8018::/48 |
| 2001:13b2:8019::/48 |
| 2001:13b2:801a::/48 |
| 2001:13b2:801b::/48 |
| 2001:13b2:801e::/48 |
| 2001:13b2:8041::/48 |
| 2001:13b2:8044::/48 |
| 2001:13b2:9002::/48 |
| 2001:13b2:9003::/48 |
| 2001:13b2:9006::/48 |
| 2001:13b2:9009::/48 |
| 2001:13b2:9018::/48 |
| 2001:13b2:9019::/48 |
| 2001:13b2:9101::/48 |
| 2001:13b2:b000::/48 |
| 2001:13b2:b001::/48 |
| 2001:13b2:ba01::/48 |
| 2001:13b2:ba10::/48 |
| 2001:13b2:bc00::/48 |
| 2001:13b2:bc01::/48 |
| 2001:13b2:bc0a::/48 |
| 2001:13b2:bc0b::/48 |
| 2001:13b2:bc0d::/48 |
| 2001:13b2:bc0e::/48 |
| 2001:13b2:bc10::/48 |
| 2001:13b2:bc11::/48 |
| 2001:13b2:bc12::/48 |
| 2001:13b2:bc13::/48 |
| 2001:13b2:bc15::/48 |
| 2001:13b2:bc16::/48 |
| 2001:13b2:bc17::/48 |
| 2001:13b2:bc18::/48 |
| 2001:13b2:bc19::/48 |
| 2001:13b2:bc1a::/48 |
| 2001:13b2:bc1b::/48 |
| 2001:13b2:bc1e::/48 |
| 2001:13b2:be00::/48 |
| 2001:13b2:be01::/48 |
| 2001:13b2:be03::/48 |
| 2001:13b2:be04::/48 |
| 2001:13b2:be05::/48 |
| 2001:13b2:be06::/48 |
| 2001:13b2:be09::/48 |
| 2001:13b3:3::/48 |
| 2001:13b3:8002::/48 |
| 2001:13b3:9001::/48 |
| 2001:13b4::/32 |
| 2001:13b4:4004::/48 |
| 2001:13b4:4005::/48 |
| 2001:13b4:4007::/48 |
| 2001:13b4:4008::/48 |
| 2001:13b4:400b::/48 |
| 2001:13b4:8002::/48 |
| 2001:1900::/32 |
| 2001:4c08::/32 |
| 2401:f6e0::/32 |
| 2602:2f4::/44 |
| 2606:840::/32 |
| 2620:7e:30e0::/48 |
| 2620:a9:4000::/48 |
| 2620:b0:4000::/48 |
| 2620:11b:e000::/40 |
| 2620:11b:e002::/48 |
| 2620:123:d001::/48 |
| 2620:12c:3000::/44 |
| 2620:130:800a::/48 |
| 2620:130:800b::/48 |
| 2620:13d:2060::/48 |
| 2620:13d:2061::/48 |
| 2620:13d:2062::/48 |
| 2620:13d:2063::/48 |
| 2620:13d:d01c::/48 |
| 2803:3250:eab4::/48 |
| 2806:281::/32 |
| 2806:281::/48 |
| 2806:281:1::/48 |
| 2806:281:8004::/48 |
Showing the first 100 of 128, in address order. Complete list on RIPEstat
Neighbours
Upstreams (transit or peers) (189)
| AS | Network | Visibility |
|---|---|---|
| AS1299 | Arelion Sweden AB | 403,296 |
| AS2914 | NTT America, Inc. | 366,037 |
| AS6939 | Hurricane Electric LLC | 237,369 |
| AS174 | Cogent Communications, LLC | 215,653 |
| AS3257 | GTT Communications Inc. | 138,204 |
| AS9002 | RETN Limited | 133,590 |
| AS3549 | Level 3 Parent, LLC | 129,431 |
| AS6762 | TELECOM ITALIA SPARKLE S.p.A. | 124,292 |
| AS25091 | IP-Max SA | 112,706 |
| AS3320 | Deutsche Telekom AG | 101,616 |
| AS35280 | F5 Networks SARL | 91,106 |
| AS6461 | Zayo Bandwidth | 87,794 |
| AS199524 | G-Core Labs S.A. | 86,786 |
| AS1764 | Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH | 81,844 |
| AS34177 | Celeste SAS | 78,094 |
| AS3491 | PCCW Global (HK) Ltd. | 75,557 |
| AS14840 | BR.Digital Telecom | 73,908 |
| AS132825 | MYTEK TRADING PTY LTD | 71,420 |
| AS6453 | TATA COMMUNICATIONS (AMERICA) INC | 71,220 |
| AS35625 | Eurofiber France SAS | 69,895 |
| AS6830 | LibertyGlobal Liberty Global Europe Holding B.V. | 67,980 |
| AS29222 | Infomaniak Network SA | 66,549 |
| AS6057 | Administracion Nacional de Telecomunicaciones | 63,242 |
| AS20764 | CJSC RASCOM | 60,745 |
| AS971 | PureVoltage Hosting Inc. | 59,920 |
| AS37497 | Network Platforms (PTY) LTD | 59,616 |
| AS50628 | - | 56,256 |
| AS2497 | Internet Initiative Japan Inc. | 54,466 |
| AS50629 | LWLcom GmbH | 51,460 |
| AS8529 | Zain Omantel International FZ-LLC | 48,636 |
The 30 most visible of 189.
Downstreams (customers) (6,555)
| AS | Network | Visibility |
|---|---|---|
| AS174 | Cogent Communications, LLC | 128,811 |
| AS1299 | Arelion Sweden AB | 124,407 |
| AS16735 | ALGAR TELECOM S/A | 112,199 |
| AS6453 | TATA COMMUNICATIONS (AMERICA) INC | 85,490 |
| AS2914 | NTT America, Inc. | 80,632 |
| AS721 | United States Department of Defense (DoD) | 80,600 |
| AS3257 | GTT Communications Inc. | 72,056 |
| AS9002 | RETN Limited | 69,734 |
| AS209 | CenturyLink Communications, LLC | 62,335 |
| AS7018 | AT&T Enterprises, LLC | 60,664 |
| AS6461 | Zayo Bandwidth | 57,702 |
| AS3549 | - | 56,841 |
| AS52468 | UFINET PANAMA S.A. | 55,591 |
| AS263009 | FORTE TELECOM LTDA. | 53,358 |
| AS12956 | TELEFONICA GLOBAL SOLUTIONS SL | 48,686 |
| AS3491 | PCCW Global (HK) Ltd. | 48,097 |
| AS267613 | ELETRONET S.A. | 44,601 |
| AS6762 | TELECOM ITALIA SPARKLE S.p.A. | 43,489 |
| AS3216 | PJSC "Vimpelcom" | 42,388 |
| AS53087 | TELY Ltda. | 34,240 |
| AS53062 | GGNET TELECOMUNICACOES LTDA | 34,032 |
| AS271253 | LINK BRASIL TELECOMUNICACOES LTDA | 33,702 |
| AS8220 | COLT Technology Services Group Limited | 32,705 |
| AS13786 | Seabras 1 USA, LLC | 32,634 |
| AS14840 | BR.Digital Telecom | 32,508 |
| AS701 | Verizon Business | 32,317 |
| AS34984 | Superonline Iletisim Hizmetleri A.S. | 32,133 |
| AS42020 | LibanTelecom OGERO | 29,387 |
| AS4826 | Vocus Connect International Backbone | 27,708 |
| AS6939 | Hurricane Electric LLC | 26,570 |
The 30 most visible of 6,555.
43 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.
Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.
How to read this page
An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.
A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.
Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.
The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.