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Autonomous System

AS26380 ยท MasterCard Technologies LLC

Overview

AS26380 is announced on the Internet: RIPE RIS route collectors currently see 68 IPv4 prefixes and 4 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 15,104 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 19 upstream neighbours (transit providers or peers) and no downstream neighbour (customers or networks it carries). Its most visible upstreams are GTT Communications Inc. (AS3257), Akamai Technologies, Inc. (AS32787), and Charter Communications LLC (AS22677). AS26380 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 9:52 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 12.22.152.1, the first address of 12.22.152.0/22. 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 (68 prefixes)

PrefixAddresses
12.10.32.0/23512
12.10.32.0/24256
12.10.33.0/24256
12.22.152.0/221,024
12.22.152.0/24256
12.22.153.0/24256
12.22.154.0/24256
12.22.155.0/24256
12.22.156.0/24256
12.22.157.0/24256
12.22.158.0/24256
12.22.159.0/24256
14.102.177.0/24256
45.115.128.0/23512
45.115.128.0/24256
45.115.129.0/24256
45.115.130.0/23512
45.115.130.0/24256
75.141.71.0/24256
103.55.148.0/23512
103.55.148.0/24256
103.55.149.0/24256
103.55.150.0/23512
103.55.150.0/24256
103.55.151.0/24256
113.30.208.0/24256
113.30.209.0/24256
113.30.210.0/24256
113.30.211.0/24256
113.30.212.0/24256
113.30.213.0/24256
113.30.214.0/24256
113.30.215.0/24256
156.154.239.0/24256
180.92.176.0/24256
185.96.136.0/23512
185.96.136.0/24256
185.96.137.0/24256
185.96.138.0/24256
185.175.204.0/23512
185.175.204.0/24256
185.175.205.0/24256
185.175.206.0/23512
185.175.206.0/24256
185.175.207.0/24256
185.199.60.0/24256
185.199.61.0/24256
205.233.71.0/24256
209.64.210.0/24256
209.64.211.0/24256
216.119.208.0/221,024
216.119.208.0/24256
216.119.209.0/24256
216.119.210.0/24256
216.119.213.0/24256
216.119.214.0/24256
216.119.215.0/24256
216.119.216.0/221,024
216.119.216.0/24256
216.119.217.0/24256
216.119.218.0/24256
216.119.219.0/24256
216.119.222.0/24256
216.119.223.0/24256
217.149.105.0/24256
217.149.106.0/24256
217.149.107.0/24256
220.101.52.0/24256

IPv6 prefixes (4 prefixes)

Prefix
2607:3c00:6404::/47
2607:3c00:6404::/48
2607:3c00:6414::/47
2607:3c00:6414::/48

Neighbours

Upstreams (transit or peers) (19)

ASNetworkVisibility
AS3257GTT Communications Inc.564
AS32787Akamai Technologies, Inc.550
AS22677Charter Communications LLC534
AS4755TATA Communications formerly VSNL is Leading ISP513
AS15830Equinix Equinix (EMEA) Acquisition Enterprises B.V.388
AS19905Vercara, LLC374
AS7474SingTel Optus Pty Ltd364
AS12741Netia SA279
AS13335Cloudflare, Inc.275
AS7018AT&T Enterprises, LLC262
AS42649-262
AS2687-259
AS3356Level 3 Parent, LLC257
AS4812China Telecom (Group)253
AS1221-162
AS54004Cablevision Lightpath LLC93
AS5400-88
AS3300British Telecommunications Limited18
AS286GTT Communications Inc.2

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.