Country
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ASN LANDING PAGE
AS3557
ISC-AS - Internet Systems Consortium
Last updated · Apr 4, 2026
Total prefixes
4
IPv4 prefixes
2
IPv6 prefixes
2
ASN summary
How to read the scale of AS3557
ISC-AS - Internet Systems Consortium currently shows 4 prefixes and 20 upstream, downstream, or peer relationships. Larger prefix inventories often indicate broader network footprint, but they should still be read together with country and peering context.
When is an ASN page most useful?
ASN landing pages are more useful than a single IP page when you want cloud provider attribution, routing research, infrastructure comparison, or network topology analysis at the organization level.
How should you read the country, organization, and role of AS3557?
ISC-AS - Internet Systems Consortium is currently associated with an unknown region. Country data is only a starting point; the more important signals are the organization name, website, prefix volume, and peering relationships that reveal whether the network behaves like a cloud platform, ISP, CDN, or enterprise backbone.
What should you inspect next after the AS3557 page?
This page is currently showing live ASN data that can be used for peer, prefix, and network scale analysis. The most useful next step is usually to return to a related IP landing page, then compare that concrete address with this ASN profile and with broader topic pages for routing, cloud attribution, or WHOIS ownership analysis.
Search intents this ASN page helps cover
AS3557 ASN lookupAS3557 BGPAS3557 peersAS3557 prefixesAS3557 upstreamsISC-AS - Internet Systems Consortium ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Detailed data for this ASN is not available right now.
Peers
AS13335
AS13335
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AS30132
AS30132
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AS1280
AS1280
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AS33071
AS33071
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AS33082
AS33082
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AS30122
AS30122
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AS394070
AS394070
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AS27322
AS27322
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AS33073
AS33073
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AS61447
AS61447
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AS205488
AS205488
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AS2847
AS2847
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AS24051
AS24051
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AS27320
AS27320
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AS30124
AS30124
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AS33072
AS33072
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AS33081
AS33081
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AS201969
AS201969
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AS210762
AS210762
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AS328995
AS328995
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 192.5.4.0/23 | AS3557 | — |
| 192.5.5.0/24 | AS3557 | — |
| 2001:500:2e::/47 | AS3557 | — |
| 2001:500:2f::/48 | AS3557 | — |
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AS16509 · Amazon
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Related lookups and next steps
WHOIS vs ASN Ownership Guide
Continue from this ASN into the differences between WHOIS ownership and ASN ownership.
Routing Troubleshooting and Network Analysis
Continue from this ASN into route troubleshooting and network analysis.
Cloud Network and ASN Comparison
Useful when you want to compare this ASN against larger cloud and edge networks.
WHOIS and IP Ownership Guide
Continue from the ASN page into WHOIS and ownership verification.
Frequently asked questions about this ASN page
What does AS3557 represent?
AS3557 is an autonomous system number used to identify an independently operated network. The current page associates it with ISC-AS - Internet Systems Consortium in an unknown region, which helps determine whether it behaves like a cloud provider, ISP, CDN, or enterprise backbone.
What are peers, upstreams, and prefixes useful for on the AS3557 page?
They help explain the scale, interconnection depth, and route structure of AS3557. 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 AS3557?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS3557, then continue into cloud, WHOIS, or routing topic pages to understand the network in a broader context.
Related topics
WHOIS vs ASN Ownership Guide
Understand why WHOIS ownership and ASN ownership can differ, and how to combine both when deciding who really owns or operates an IP.
WHOIS and IP Ownership Guide
Use WHOIS, ASN, prefixes, and organization data to determine who ultimately owns an IP, range, or resolved domain target.
BGP and ASN Basics Guide
Learn what ASN, BGP routes, prefixes, upstreams, downstreams, and peers mean, then explore real ASN pages.
Cloud Network and ASN Comparison
Compare large cloud and edge networks such as Google, Cloudflare, Microsoft, and Amazon through their ASN landing pages.