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Autonomous System

AS36103 · Central Utah Telephone, Inc.

Overview

AS36103 is announced on the Internet: RIPE RIS route collectors currently see 126 IPv4 prefixes and 19 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 70,144 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 5 upstream neighbours (transit providers or peers) and 26 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Arelion Sweden AB (AS1299), and GTT Communications Inc. (AS3257). AS36103 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:58 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 148.85.0.1, the first address of 148.85.0.0/18. 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 (126 prefixes)

PrefixAddresses
23.88.160.0/204,096
23.88.160.0/23512
23.88.162.0/24256
23.88.163.0/24256
23.88.164.0/24256
23.88.165.0/24256
23.88.166.0/24256
23.88.167.0/24256
23.88.168.0/24256
23.88.169.0/24256
23.88.170.0/24256
23.88.171.0/24256
23.88.172.0/24256
23.88.173.0/24256
23.88.174.0/24256
23.88.175.0/24256
63.78.116.0/221,024
63.78.212.0/221,024
63.90.74.0/24256
64.62.176.0/24256
64.72.208.0/204,096
64.72.216.0/24256
64.72.217.0/24256
64.77.208.0/23512
64.77.209.0/24256
64.77.240.0/204,096
64.77.241.0/24256
65.49.6.0/23512
65.49.58.0/23512
65.49.74.0/23512
65.49.84.0/221,024
65.49.85.0/24256
65.49.86.0/24256
65.49.87.0/24256
65.49.90.0/23512
65.49.94.0/23512
65.49.96.0/221,024
65.49.116.0/221,024
65.49.116.0/23512
65.49.118.0/24256
65.49.120.0/221,024
65.49.120.0/24256
65.49.121.0/24256
65.49.122.0/24256
65.49.123.0/24256
65.203.16.0/221,024
65.203.16.0/24256
66.160.202.0/24256
66.220.27.0/24256
67.207.32.0/204,096
67.207.32.0/221,024
67.207.36.0/24256
67.207.46.0/24256
68.68.166.0/23512
68.70.232.0/221,024
68.70.236.0/24256
68.70.247.0/24256
68.70.253.0/24256
68.70.254.0/24256
69.163.64.0/204,096
69.163.65.0/24256
69.163.66.0/24256
69.163.67.0/24256
69.163.68.0/24256
69.163.69.0/24256
69.163.70.0/23512
69.163.72.0/24256
69.163.73.0/24256
69.163.74.0/24256
69.163.75.0/24256
69.163.76.0/24256
69.163.77.0/24256
69.163.78.0/24256
69.163.79.0/24256
72.52.109.0/24256
74.50.216.0/212,048
74.50.217.0/24256
74.82.6.0/23512
74.82.44.0/23512
74.82.54.0/23512
74.82.57.0/24256
97.75.224.0/23512
97.75.225.0/24256
148.85.0.0/1816,384
148.85.10.0/24256
198.135.172.0/221,024
198.135.174.0/24256
202.69.144.0/204,096
202.69.144.0/24256
202.69.145.0/24256
202.69.146.0/24256
202.69.147.0/24256
202.69.148.0/24256
202.69.149.0/24256
202.69.150.0/24256
202.69.151.0/24256
202.69.152.0/24256
202.69.153.0/24256
202.69.154.0/24256
202.69.155.0/24256

Showing the first 100 of 126, in address order. Complete list on RIPEstat

IPv6 prefixes (19 prefixes)

Prefix
2001:470:e4::/48
2604:76c0::/32
2604:76c0:43::/48
2604:76c0:44::/48
2604:76c0:a74::/48
2604:76c0:21ed::/48
2604:76c0:21ef::/48
2604:76c0:24ed::/48
2604:76c0:24ef::/48
2604:76c0:26ef::/48
2604:76c0:75ed::/48
2604:76c0:75ef::/48
2604:76c0:a188::/48
2604:76c0:deac::/47
2604:76c0:deec::/48
2604:76c0:deed::/48
2604:76c0:fafa::/48
2604:76c0:feed::/48
2606:db40::/32

Neighbours

Upstreams (transit or peers) (5)

ASNetworkVisibility
AS6939Hurricane Electric LLC5,067
AS1299Arelion Sweden AB667
AS3257GTT Communications Inc.475
AS174Cogent Communications, LLC414
AS286GTT Communications Inc.8

Downstreams (customers) (26)

ASNetworkVisibility
AS395123CENTRACOM INTERACTIVE321
AS31811Manti Tele Communication Company320
AS36595Payment Processing Inc.277
AS54900Alianza Inc.277
AS36788Wells Rural Electric Company274
AS394751NetDocuments263
AS10444NATIONAL ASSOCIATION - ZB, National Association262
AS395599Alder260
AS23423BROADBAND - Wasatch Broadband258
AS53882Communitect, Inc258
AS401382-243
AS401671ACCESSPARKS LLC240
AS394584-239
AS393816-238
AS5048FIBERNET Corp.235
AS62584-234
AS402321-234
AS33159-210
AS25655-207
AS54909-207
AS32599-205
AS11913-200
AS399851-191
AS393915-188
AS400284-161
AS399078-34

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.