Country
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ASN LANDING PAGE
AS51557
TR-ISIMTESCIL-20201202 Isimtescil Bilisim A.S.
Last updated · Jul 20, 2026
Total prefixes
11
IPv4 prefixes
11
IPv6 prefixes
0
ASN summary
How to read the scale of AS51557
TR-ISIMTESCIL-20201202 Isimtescil Bilisim A.S. currently reports 11 prefixes and 1 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?
TR-ISIMTESCIL-20201202 Isimtescil Bilisim A.S. 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 AS51557 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
AS51557 ASN lookupAS51557 BGPAS51557 peersAS51557 prefixesAS51557 upstreamsTR-ISIMTESCIL-20201202 Isimtescil Bilisim A.S. ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Detailed data for this ASN is not available right now.
Peers
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 185.111.232.0/23 | AS51557 | — |
| 185.111.234.0/24 | AS51557 | — |
| 185.33.232.0/22 | AS51557 | — |
| 84.51.21.0/24 | AS51557 | — |
| 84.51.25.0/24 | AS51557 | — |
| 84.51.38.0/24 | AS51557 | — |
| 91.93.146.0/24 | AS51557 | — |
| 91.93.149.0/24 | AS51557 | — |
| 91.93.151.0/24 | AS51557 | — |
| 91.93.152.0/24 | AS51557 | — |
| 93.89.224.0/20 | AS51557 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS51557 represent?
AS51557 is an autonomous system number. The current source associates it with TR-ISIMTESCIL-20201202 Isimtescil Bilisim A.S. 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 AS51557 page?
They help explain the scale, interconnection depth, and route structure of AS51557. 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 AS51557?
Open a concrete IP page to check how the address maps into AS51557, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
Related topics
BGP and ASN Basics Guide
Use real IP and ASN pages to understand ASNs, BGP prefixes, peers, upstreams, and downstreams, including the limits of each snapshot.
Routing Troubleshooting and Network Analysis
Build troubleshooting context from an IP, BGP prefix, ASN, and public network relationships without treating static route data as a packet path.
Cloud Network and ASN Comparison
Compare representative cloud and edge networks by ASN, announced prefixes, peers, upstreams, and downstreams without inferring a specific host or customer workload.