Country
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ASN LANDING PAGE
AS45903
CMCTELECOM-VN - CMC Telecom Infrastructure Company
Last updated · Jul 20, 2026
Total prefixes
487
IPv4 prefixes
349
IPv6 prefixes
138
ASN summary
How to read the scale of AS45903
CMCTELECOM-VN - CMC Telecom Infrastructure Company currently reports 487 prefixes and 80 upstream, downstream, or peer relationships. These counts describe the current dataset; they do not by themselves prove network quality, reach, or service use.
What can an ASN page answer?
An ASN page shows the public organization label, country or region, BGP prefixes, and available peer and upstream relationships. It adds network context but cannot confirm a website host, physical facility, security status, or service quality.
How should you read the organization and region fields?
CMCTELECOM-VN - CMC Telecom Infrastructure Company is currently associated with an unknown region. These values come from public network sources and are useful lookup clues; an organization label, registration region, and actual service location may differ.
How should you verify the AS45903 result?
The page shows ASN data returned by the current upstream query; interpret it with the update time. Open representative IP pages from the same network and compare prefixes, source labels, and query times. Verify operator or service claims with the relevant registry or network operator.
How to verify this ASN result
AS45903 ASN lookupAS45903 BGPAS45903 peersAS45903 prefixesAS45903 upstreamsCMCTELECOM-VN - CMC Telecom Infrastructure Company ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS38733
AS38733
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AS38732
AS38732
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AS55309
AS55309
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AS135983
AS135983
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AS45538
AS45538
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AS131127
AS131127
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AS38247
AS38247
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AS63731
AS63731
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AS140810
AS140810
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AS24173
AS24173
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AS150837
AS150837
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AS131421
AS131421
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AS38244
AS38244
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AS135947
AS135947
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AS55318
AS55318
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AS56147
AS56147
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AS396986
AS396986
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AS63741
AS63741
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AS154552
AS154552
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AS55306
AS55306
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AS135938
AS135938
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AS38253
AS38253
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AS55313
AS55313
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AS140765
AS140765
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AS56150
AS56150
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AS131436
AS131436
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AS139341
AS139341
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AS152940
AS152940
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AS38726
AS38726
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AS56144
AS56144
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AS19551
AS19551
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AS131392
AS131392
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AS131398
AS131398
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AS63743
AS63743
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AS138995
AS138995
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AS131351
AS131351
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AS63763
AS63763
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AS152994
AS152994
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AS131410
AS131410
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AS131364
AS131364
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Peers
AS9304
AS9304
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AS15412
AS15412
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AS3491
AS3491
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AS2914
AS2914
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AS21859
AS21859
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AS5511
AS5511
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AS3356
AS3356
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AS6939
AS6939
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AS7473
AS7473
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AS703
AS703
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AS8220
AS8220
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AS58453
AS58453
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AS4766
AS4766
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AS4635
AS4635
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AS35280
AS35280
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AS23962
AS23962
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AS24482
AS24482
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AS5405
AS5405
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AS39686
AS39686
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AS8298
AS8298
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AS34549
AS34549
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AS49544
AS49544
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AS20485
AS20485
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AS34019
AS34019
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AS34927
AS34927
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AS36236
AS36236
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AS8758
AS8758
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AS3303
AS3303
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AS25091
AS25091
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AS9002
AS9002
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AS12779
AS12779
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AS1103
AS1103
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AS14840
AS14840
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AS29691
AS29691
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AS137409
AS137409
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AS6057
AS6057
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AS24961
AS24961
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AS24173
AS24173
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AS37721
AS37721
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AS6663
AS6663
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 101.99.0.0/21 | AS45903 | — |
| 101.99.0.0/23 | AS45903 | — |
| 101.99.1.0/24 | AS45903 | — |
| 101.99.10.0/24 | AS45903 | — |
| 101.99.11.0/24 | AS45903 | — |
| 101.99.12.0/22 | AS45903 | — |
| 101.99.12.0/23 | AS45903 | — |
| 101.99.12.0/24 | AS45903 | — |
| 101.99.13.0/24 | AS45903 | — |
| 101.99.14.0/24 | AS45903 | — |
| 101.99.15.0/24 | AS45903 | — |
| 101.99.16.0/21 | AS45903 | — |
| 101.99.16.0/22 | AS45903 | — |
| 101.99.16.0/23 | AS45903 | — |
| 101.99.17.0/24 | AS45903 | — |
| 101.99.18.0/23 | AS45903 | — |
| 101.99.2.0/23 | AS45903 | — |
| 101.99.2.0/24 | AS45903 | — |
| 101.99.20.0/23 | AS45903 | — |
| 101.99.20.0/24 | AS45903 | — |
| 101.99.21.0/24 | AS45903 | — |
| 101.99.22.0/24 | AS45903 | — |
| 101.99.23.0/24 | AS45903 | — |
| 101.99.24.0/21 | AS45903 | — |
| 101.99.24.0/23 | AS45903 | — |
| 101.99.24.0/24 | AS45903 | — |
| 101.99.25.0/24 | AS45903 | — |
| 101.99.26.0/23 | AS45903 | — |
| 101.99.26.0/24 | AS45903 | — |
| 101.99.27.0/24 | AS45903 | — |
| 101.99.28.0/23 | AS45903 | — |
| 101.99.28.0/24 | AS45903 | — |
| 101.99.29.0/24 | AS45903 | — |
| 101.99.30.0/23 | AS45903 | — |
| 101.99.31.0/24 | AS45903 | — |
| 101.99.32.0/21 | AS45903 | — |
| 101.99.32.0/23 | AS45903 | — |
| 101.99.34.0/24 | AS45903 | — |
| 101.99.35.0/24 | AS45903 | — |
| 101.99.36.0/24 | AS45903 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS45903 represent?
AS45903 is an autonomous system number. The current source associates it with CMCTELECOM-VN - CMC Telecom Infrastructure Company and the region field an unknown region; those values add network context but do not prove a specific service, physical location, or quality level.
What are peers, upstreams, and prefixes useful for on the AS45903 page?
They help explain the scale, interconnection depth, and route structure of AS45903. Richer peering and upstream data often indicate broader network reach, but they should still be interpreted together with prefixes and related IP landing pages.
What should you do after reviewing AS45903?
Open a concrete IP page to check how the address maps into AS45903, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
Related topics
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