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Autonomous System

AS24173 · Netnam Company

Overview

AS24173 is announced on the Internet: RIPE RIS route collectors currently see 250 IPv4 prefixes and 261 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 65,024 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 26 upstream neighbours (transit providers or peers) and 25 downstream neighbours (customers or networks it carries). Its most visible upstreams are VNPT Corp (AS45899), Level 3 Parent, LLC (AS3356), and IPTP LTD (AS41095). AS24173 was assigned by APNIC, and its registration country is Vietnam.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:59 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 101.96.64.1

The trace goes to 101.96.64.1, the first address of 101.96.64.0/18. 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 (250 prefixes)

PrefixAddresses
101.53.0.0/24256
101.53.1.0/24256
101.53.2.0/24256
101.53.3.0/24256
101.53.4.0/24256
101.53.5.0/24256
101.53.7.0/24256
101.53.8.0/24256
101.53.9.0/24256
101.53.10.0/24256
101.53.11.0/24256
101.53.13.0/24256
101.53.14.0/24256
101.53.15.0/24256
101.53.16.0/24256
101.53.17.0/24256
101.53.18.0/24256
101.53.19.0/24256
101.53.20.0/24256
101.53.22.0/24256
101.53.23.0/24256
101.53.24.0/24256
101.53.25.0/24256
101.53.26.0/24256
101.53.27.0/24256
101.53.28.0/24256
101.53.29.0/24256
101.53.30.0/24256
101.53.31.0/24256
101.53.32.0/24256
101.53.33.0/24256
101.53.34.0/24256
101.53.35.0/24256
101.53.36.0/24256
101.53.37.0/24256
101.53.38.0/24256
101.53.39.0/24256
101.53.40.0/24256
101.53.41.0/24256
101.53.42.0/24256
101.53.43.0/24256
101.53.44.0/24256
101.53.45.0/24256
101.53.46.0/24256
101.53.47.0/24256
101.53.48.0/24256
101.53.49.0/24256
101.53.50.0/24256
101.53.51.0/24256
101.53.52.0/24256
101.53.53.0/24256
101.53.54.0/24256
101.53.55.0/24256
101.53.56.0/24256
101.53.57.0/24256
101.53.58.0/24256
101.53.59.0/24256
101.53.60.0/24256
101.53.61.0/24256
101.53.62.0/24256
101.53.63.0/24256
101.96.64.0/1816,384
101.96.64.0/24256
101.96.65.0/24256
101.96.66.0/24256
101.96.67.0/24256
101.96.68.0/24256
101.96.69.0/24256
101.96.70.0/24256
101.96.71.0/24256
101.96.72.0/24256
101.96.73.0/24256
101.96.74.0/24256
101.96.75.0/24256
101.96.76.0/24256
101.96.77.0/24256
101.96.78.0/24256
101.96.79.0/24256
101.96.82.0/24256
101.96.83.0/24256
101.96.84.0/24256
101.96.85.0/24256
101.96.86.0/24256
101.96.87.0/24256
101.96.88.0/24256
101.96.90.0/24256
101.96.91.0/24256
101.96.92.0/24256
101.96.93.0/24256
101.96.94.0/24256
101.96.95.0/24256
101.96.96.0/24256
101.96.97.0/24256
101.96.98.0/24256
101.96.99.0/24256
101.96.100.0/24256
101.96.101.0/24256
101.96.102.0/24256
101.96.103.0/24256
101.96.104.0/24256

Showing the first 100 of 250, in address order. Complete list on RIPEstat

IPv6 prefixes (261 prefixes)

Prefix
2401:e800::/33
2401:e800::/40
2401:e800::/48
2401:e800:100::/40
2401:e800:100::/48
2401:e800:200::/40
2401:e800:300::/40
2401:e800:400::/40
2401:e800:500::/40
2401:e800:600::/40
2401:e800:700::/40
2401:e800:800::/40
2401:e800:900::/40
2401:e800:a00::/40
2401:e800:b00::/40
2401:e800:c00::/40
2401:e800:d00::/40
2401:e800:e00::/40
2401:e800:f00::/40
2401:e800:1000::/40
2401:e800:1100::/40
2401:e800:1200::/40
2401:e800:1300::/40
2401:e800:1400::/40
2401:e800:1500::/40
2401:e800:1600::/40
2401:e800:1700::/40
2401:e800:1800::/40
2401:e800:1900::/40
2401:e800:1900::/48
2401:e800:1a00::/40
2401:e800:1b00::/40
2401:e800:1c00::/40
2401:e800:1d00::/40
2401:e800:1e00::/40
2401:e800:1f00::/40
2401:e800:2000::/40
2401:e800:2100::/40
2401:e800:2200::/40
2401:e800:2300::/40
2401:e800:2400::/40
2401:e800:2500::/40
2401:e800:2600::/40
2401:e800:2700::/40
2401:e800:2800::/40
2401:e800:2900::/40
2401:e800:2a00::/40
2401:e800:2b00::/40
2401:e800:2c00::/40
2401:e800:2d00::/40
2401:e800:2e00::/40
2401:e800:2f00::/40
2401:e800:3000::/40
2401:e800:3100::/40
2401:e800:3200::/40
2401:e800:3300::/40
2401:e800:3400::/40
2401:e800:3500::/40
2401:e800:3600::/40
2401:e800:3700::/40
2401:e800:3800::/40
2401:e800:3900::/40
2401:e800:3a00::/40
2401:e800:3b00::/40
2401:e800:3c00::/40
2401:e800:3d00::/40
2401:e800:3e00::/40
2401:e800:3f00::/40
2401:e800:4000::/40
2401:e800:4100::/40
2401:e800:4200::/40
2401:e800:4300::/40
2401:e800:4400::/40
2401:e800:4500::/40
2401:e800:4600::/40
2401:e800:4700::/40
2401:e800:4800::/40
2401:e800:4900::/40
2401:e800:4a00::/40
2401:e800:4b00::/40
2401:e800:4c00::/40
2401:e800:4d00::/40
2401:e800:4e00::/40
2401:e800:4f00::/40
2401:e800:5000::/40
2401:e800:5100::/40
2401:e800:5200::/40
2401:e800:5300::/40
2401:e800:5400::/40
2401:e800:5500::/40
2401:e800:5600::/40
2401:e800:5700::/40
2401:e800:5800::/40
2401:e800:5900::/40
2401:e800:5a00::/40
2401:e800:5b00::/40
2401:e800:5c00::/40
2401:e800:5d00::/40
2401:e800:5e00::/40
2401:e800:5f00::/40

Showing the first 100 of 261, in address order. Complete list on RIPEstat

Neighbours

Upstreams (transit or peers) (26)

ASNetworkVisibility
AS45899VNPT Corp3,291
AS3356Level 3 Parent, LLC2,140
AS41095IPTP LTD1,708
AS7552Viettel Group1,469
AS45903CMC Telecom Infrastructure Company1,345
AS6453TATA COMMUNICATIONS (AMERICA) INC1,219
AS3491PCCW Global (HK) Ltd.283
AS6939Hurricane Electric LLC267
AS140951IPTP Networks230
AS21859Zenlayer Inc224
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC15
AS9957KINX13
AS9002RETN Limited12
AS33891Core-Backbone GmbH12
AS35280F5 Networks SARL12
AS24482SG.GS11
AS38008Aperture Science Limited10
AS2518BIGLOBE Inc.4
AS137409GSL Networks Pty LTD3
AS9498BHARTI Airtel Ltd.2
AS15802Emirates Integrated Telecommunications Company PJSC2
AS20326TeraSwitch Networks Inc.2
AS132132MyRepublic Ltd.2
AS9505Taiwan Internet Gateway1
AS17557Pakistan Telecommunication Company Limited1
AS24115Equinix1

Downstreams (customers) (25)

ASNetworkVisibility
AS24176Branch of Netnam Company in Ho Chi Minh City872
AS24175National Agency for Scientific and Technological Information609
AS135929International Education Corporation534
AS131380Niteco Vietnam Co., Ltd.532
AS131373Information Technology Center - Ministry of Science and Technology518
AS56155Tuong Minh Software Solutions Company Limited514
AS14080207-02A, Floor 7, Prime Center,53 Quang Trung, Nguyen Du Ward. Hai Ba Trung District, HN513
AS149159Viet Nam Academy of Science and Technology497
AS45541Information Technology Center - Joint Stock Commercial Bank for Investment and Development of Vietnam426
AS131343Vietnam Internationl commercial joint stock bank306
AS45542-286
AS131369-269
AS140809-265
AS63746-264
AS154053-263
AS153650-257
AS135919-255
AS131439-223
AS131436-220
AS131372-219
AS135971-164
AS45900-155
AS55310-126
AS135909-19
AS45903CMC Telecom Infrastructure Company7

14 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.