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Autonomous System

AS12222 · Akamai Technologies, Inc.

Overview

AS12222 is announced on the Internet: RIPE RIS route collectors currently see 31 IPv4 prefixes and 115 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 8,192 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 30 upstream neighbours (transit providers or peers) and no downstream neighbour (customers or networks it carries). Its most visible upstreams are Comcast Cable Communications, LLC (AS7922), Comcast Cable Communications, LLC (AS7015), and Level 3 Parent, LLC (AS3356). AS12222 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 8:03 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 23.74.0.1, the first address of 23.74.0.0/23. 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 (31 prefixes)

PrefixAddresses
2.16.36.0/24256
2.22.226.0/24256
23.15.11.0/24256
23.15.12.0/24256
23.56.209.0/24256
23.62.225.0/24256
23.74.0.0/23512
23.79.224.0/24256
23.79.229.0/24256
23.79.232.0/24256
23.79.237.0/24256
23.79.238.0/24256
23.200.22.0/24256
72.246.3.0/24256
72.246.44.0/24256
72.246.116.0/24256
72.246.199.0/24256
72.247.44.0/24256
72.247.45.0/24256
72.247.47.0/24256
72.247.150.0/24256
72.247.151.0/24256
80.67.64.0/24256
80.67.65.0/24256
80.67.70.0/24256
80.67.73.0/24256
88.221.208.0/24256
88.221.209.0/24256
104.101.221.0/24256
184.51.33.0/24256
184.51.125.0/24256

IPv6 prefixes (115 prefixes)

Prefix
2001:4878:7::/48
2001:4878:8::/48
2001:4878:37::/48
2001:4878:39::/48
2001:4878:48::/48
2001:4878:62::/48
2001:4878:63::/48
2001:4878:68::/48
2001:4878:151::/48
2001:4878:164::/48
2001:4878:166::/48
2001:4878:173::/48
2001:4878:202::/48
2001:4878:204::/48
2001:4878:225::/48
2001:4878:228::/48
2001:4878:242::/48
2001:4878:321::/48
2001:4878:322::/48
2001:4878:323::/48
2001:4878:347::/48
2001:4878:2007::/48
2001:4878:2008::/48
2001:4878:2037::/48
2001:4878:2048::/48
2001:4878:2062::/48
2001:4878:2063::/48
2001:4878:2068::/48
2001:4878:2151::/48
2001:4878:2164::/48
2001:4878:2166::/48
2001:4878:2173::/48
2001:4878:2202::/48
2001:4878:2204::/48
2001:4878:2216::/48
2001:4878:2225::/48
2001:4878:2228::/48
2001:4878:2242::/48
2001:4878:2321::/48
2001:4878:2322::/48
2001:4878:2323::/48
2001:4878:2347::/48
2001:4878:3068::/48
2001:4878:4007::/48
2001:4878:4037::/48
2001:4878:4062::/48
2001:4878:4063::/48
2001:4878:4164::/48
2001:4878:4173::/48
2001:4878:4225::/48
2001:4878:4321::/48
2001:4878:4322::/48
2001:4878:4323::/48
2001:4878:4347::/48
2001:4878:8007::/48
2001:4878:8008::/48
2001:4878:8037::/48
2001:4878:8048::/48
2001:4878:8062::/48
2001:4878:8063::/48
2001:4878:8068::/48
2001:4878:8151::/48
2001:4878:8164::/48
2001:4878:8166::/48
2001:4878:8173::/48
2001:4878:8202::/48
2001:4878:8204::/48
2001:4878:8216::/48
2001:4878:8225::/48
2001:4878:8228::/48
2001:4878:8242::/48
2001:4878:8321::/48
2001:4878:8322::/48
2001:4878:8323::/48
2001:4878:8347::/48
2001:4878:a007::/48
2001:4878:a008::/48
2001:4878:a048::/48
2001:4878:a062::/48
2001:4878:a151::/48
2001:4878:a166::/48
2001:4878:a202::/48
2001:4878:a216::/48
2001:4878:a225::/48
2001:4878:a228::/48
2001:4878:a242::/48
2001:4878:a321::/48
2001:4878:a322::/48
2001:4878:a323::/48
2001:4878:a347::/48
2001:4878:b007::/48
2001:4878:b008::/48
2001:4878:b048::/48
2001:4878:b151::/48
2001:4878:b166::/48
2001:4878:b202::/48
2001:4878:b216::/48
2001:4878:b225::/48
2001:4878:b242::/48
2001:4878:b347::/48

Showing the first 100 of 115, in address order. Complete list on RIPEstat

Neighbours

Upstreams (transit or peers) (30)

ASNetworkVisibility
AS7922Comcast Cable Communications, LLC719
AS7015Comcast Cable Communications, LLC713
AS3356Level 3 Parent, LLC664
AS8220COLT Technology Services Group Limited620
AS9498BHARTI Airtel Ltd.578
AS4637Telstra Global530
AS9255Singapore Telecom497
AS10429TELEFONICA BRASIL S.A492
AS6461Zayo Bandwidth489
AS174Cogent Communications, LLC456
AS9583Sify Limited447
AS12741-401
AS52468UFINET PANAMA S.A.395
AS8767M-net Telekommunikations GmbH374
AS19855-346
AS20940Akamai International B.V.344
AS10103-282
AS701Verizon Business281
AS1680-281
AS4766Korea Telecom272
AS8551-257
AS33657-238
AS2764AAPT Limited203
AS2516KDDI CORPORATION182
AS4515PCCW IMS Ltd (PCCW Business Internet Access)149
AS55410Vodafone Idea Ltd104
AS12912T-Mobile Polska S.A.21
AS33651Comcast Cable Communications, LLC17
AS22381SAMM TECNOLOGIA E TELECOMUNICACOES S.A15
AS18881TELEFONICA BRASIL S.A1

Downstreams (customers) (0)

None seen.

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.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.