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Autonomous System

AS6621 · Hughes Network Systems, LLC

Overview

AS6621 is announced on the Internet: RIPE RIS route collectors currently see 371 IPv4 prefixes and 267 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 555,264 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 20 upstream neighbours (transit providers or peers) and 6 downstream neighbours (customers or networks it carries). Its most visible upstreams are Zayo Bandwidth (AS6461), Cogent Communications, LLC (AS174), and Transtelco Inc (AS32098). AS6621 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:04 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 66.82.0.1

The trace goes to 66.82.0.1, the first address of 66.82.0.0/19. 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 (371 prefixes)

PrefixAddresses
65.88.96.0/204,096
66.82.0.0/198,192
66.82.32.0/198,192
66.82.64.0/198,192
66.82.96.0/204,096
66.82.112.0/212,048
66.82.120.0/221,024
66.82.125.0/24256
66.82.126.0/23512
66.82.128.0/24256
66.82.130.0/23512
66.82.132.0/221,024
66.82.136.0/221,024
66.82.140.0/23512
66.82.142.0/24256
66.82.144.0/221,024
66.82.148.0/23512
66.82.151.0/24256
66.82.160.0/198,192
66.82.192.0/198,192
66.82.224.0/221,024
66.82.228.0/23512
66.82.233.0/24256
66.82.234.0/23512
66.82.238.0/23512
66.82.240.0/23512
66.82.243.0/24256
66.82.245.0/24256
66.82.246.0/23512
66.82.248.0/212,048
67.44.16.0/204,096
67.44.32.0/204,096
67.44.48.0/204,096
67.44.48.0/221,024
67.44.56.0/221,024
67.44.160.0/221,024
67.44.164.0/221,024
67.44.168.0/221,024
67.44.172.0/221,024
67.44.176.0/221,024
67.44.180.0/221,024
67.44.184.0/221,024
67.44.188.0/221,024
67.44.192.0/221,024
67.44.196.0/221,024
67.44.200.0/221,024
67.44.204.0/221,024
67.44.208.0/221,024
67.44.212.0/221,024
67.44.216.0/221,024
67.44.220.0/221,024
67.44.224.0/221,024
67.44.228.0/221,024
67.44.232.0/221,024
67.44.236.0/221,024
67.44.240.0/221,024
67.44.244.0/221,024
67.44.248.0/221,024
67.44.252.0/221,024
67.45.0.0/204,096
67.45.0.0/212,048
67.45.8.0/212,048
67.45.32.0/221,024
67.45.36.0/221,024
67.45.40.0/221,024
67.45.44.0/221,024
67.45.48.0/204,096
67.45.64.0/204,096
67.45.96.0/221,024
67.45.100.0/221,024
67.45.104.0/221,024
67.45.108.0/221,024
67.45.112.0/221,024
67.45.116.0/221,024
67.45.120.0/221,024
67.45.124.0/221,024
67.45.160.0/198,192
67.45.192.0/204,096
67.46.0.0/204,096
67.46.48.0/204,096
67.46.64.0/204,096
67.46.112.0/204,096
67.46.144.0/204,096
67.46.160.0/204,096
67.46.192.0/198,192
67.46.224.0/204,096
67.47.0.0/204,096
67.47.16.0/23512
67.47.18.0/24256
67.47.23.0/24256
67.47.24.0/212,048
67.47.32.0/198,192
67.47.80.0/204,096
67.47.192.0/204,096
67.47.224.0/204,096
67.142.0.0/198,192
67.142.100.0/221,024
67.142.104.0/221,024
67.142.108.0/221,024
67.142.112.0/221,024

Showing the first 100 of 371, in address order. Complete list on RIPEstat

IPv6 prefixes (267 prefixes)

Prefix
2001:5b0::/40
2001:5b0:100::/40
2001:5b0:300::/40
2001:5b0:1f00::/40
2001:5b0:2100::/40
2001:5b0:2200::/40
2001:5b0:2300::/40
2001:5b0:2400::/40
2001:5b0:2500::/40
2001:5b0:2600::/40
2001:5b0:2700::/40
2001:5b0:2800::/40
2001:5b0:2900::/40
2001:5b0:2a00::/40
2001:5b0:2b00::/40
2001:5b0:2c00::/40
2001:5b0:2d00::/40
2001:5b0:3d00::/40
2001:5b0:3e00::/40
2001:5b0:3f00::/40
2001:5b0:4100::/40
2001:5b0:4200::/40
2001:5b0:4300::/40
2001:5b0:4400::/40
2001:5b0:4500::/40
2001:5b0:4600::/40
2001:5b0:4700::/40
2001:5b0:4800::/40
2001:5b0:4900::/40
2001:5b0:4a00::/40
2001:5b0:4b00::/40
2001:5b0:4c00::/40
2001:5b0:4d00::/40
2001:5b0:4e00::/40
2001:5b0:4ec0::/46
2001:5b0:4ec4::/48
2001:5b0:4ec5::/48
2001:5b0:4ec6::/48
2001:5b0:4ec7::/48
2001:5b0:4ec8::/48
2001:5b0:4ec9::/48
2001:5b0:4ecf::/48
2001:5b0:4ed0::/48
2001:5b0:4ed1::/48
2001:5b0:4ed2::/48
2001:5b0:4ed4::/48
2001:5b0:4eda::/47
2001:5b0:4edc::/48
2001:5b0:4edd::/48
2001:5b0:4f00::/40
2001:5b0:5000::/40
2001:5b0:5100::/40
2001:5b0:5200::/40
2001:5b0:5300::/40
2001:5b0:5400::/40
2001:5b0:5b00::/40
2001:5b0:5f00::/40
2001:5b0:6500::/40
2001:5b0:6600::/40
2001:5b0:6900::/40
2001:5b0:7000::/40
2001:5b0:7100::/40
2001:5b0:7200::/40
2001:5b0:7300::/40
2001:5b0:7500::/40
2001:5b0:7600::/40
2001:5b0:7700::/40
2001:5b0:7800::/40
2001:5b0:8000::/37
2001:5b0:8000::/39
2001:5b0:8200::/44
2001:5b0:8210::/44
2001:5b0:8220::/44
2001:5b0:8230::/44
2001:5b0:8240::/44
2001:5b0:8400::/39
2001:5b0:8600::/39
2001:5b0:8800::/37
2001:5b0:8800::/39
2001:5b0:9000::/37
2001:5b0:9000::/44
2001:5b0:9010::/44
2001:5b0:9020::/44
2001:5b0:9030::/44
2001:5b0:9040::/44
2001:5b0:9050::/44
2001:5b0:9060::/44
2001:5b0:9070::/44
2001:5b0:9080::/44
2001:5b0:9090::/44
2001:5b0:90a0::/44
2001:5b0:90b0::/44
2001:5b0:90c0::/44
2001:5b0:90d0::/44
2001:5b0:90e0::/44
2001:5b0:90f0::/44
2001:5b0:9100::/44
2001:5b0:9110::/44
2001:5b0:9120::/44
2001:5b0:9130::/44

Showing the first 100 of 267, in address order. Complete list on RIPEstat

Neighbours

Upstreams (transit or peers) (20)

ASNetworkVisibility
AS6461Zayo Bandwidth2,588
AS174Cogent Communications, LLC1,820
AS32098Transtelco Inc1,684
AS13765Nedelco Inc.1,325
AS13999Mega Cable, S.A. de C.V.1,193
AS3356Level 3 Parent, LLC833
AS6503Axtel, S.A.B. de C.V.533
AS8057Vision Net, Inc.531
AS11172Alestra, S. de R.L. de C.V.487
AS7018AT&T Enterprises, LLC401
AS6939Hurricane Electric LLC89
AS3257GTT Communications Inc.42
AS3549Level 3 Parent, LLC3
AS9002RETN Limited3
AS137409GSL Networks Pty LTD2
AS286GTT Communications Inc.1
AS7575Australian Academic and Research Network (AARNet)1
AS20326TeraSwitch Networks Inc.1
AS52025ParadoxNetworks Limited1
AS394256Tech Futures Interactive Inc.1

Downstreams (customers) (6)

ASNetworkVisibility
AS265591HNS DE MEXICO, S.A. DE C.V.2,800
AS265705HUGHES DE COLOMBIA S.A.S.2,139
AS265515TELEVERA RED S. A. P. I. DE C.V.1,633
AS63062Hughes Network Systems, LLC434
AS1358Hughes Network Systems, LLC396
AS28613HUGHES TELECOMUNICACOES DO BRASIL LTDA.336

7 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.

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.