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AS204021

CIECH S.A.

RIPE NCC PL active Announced
More ASNs in Poland →
Organization
CIECH S.A.
Ciech
Registered
Sep 14, 2015
11 years ago
IPv4 Prefixes
1
256 addresses
IPv6 Prefixes
0
BGP Neighbours
2
2 upstream/peer · 0 downstream

Registration

AS Number AS204021 AS Name Ciech Organization CIECH S.A. Organization ID ORG-CS380-RIPE Address Wspolna 62, 02-682 Warszawa, PL Country Poland (PL) Registry RIPE NCC Allocated Sep 14, 2015 Record Created Sep 14, 2015 Last Updated Nov 16, 2020 Status
active
WHOIS Server whois.ripe.net AS Description Ciech - CIECH S.A., PL Abuse Email [email protected]

IPv4 Prefixes

1 prefix · 256 addresses Routing data as of 2026-10-09 16:00 UTC

PrefixRangeAddresses
213.189.49.0/24213.189.49.0 – 213.189.49.255256

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

2 unique neighbours · 2 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries.

Upstream & peer side (2)

Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS15694ATMAN-ISP-AS Atman Sp. z o.o.2433120
AS12741AS-NETIA Netia SA36370

Raw RDAP Response

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  "handle": "AS204021",
  "startAutnum": 204021,
  "endAutnum": 204021,
  "name": "Ciech",
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          [
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            "ATMAN NOC"
          ],
          [
            "kind",
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            "group"
          ],
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            "adr",
            {
              "label": "ATM S.A.\nul. Grochowska 21a\n04-186 Warsaw\nPoland"
            },
            "text",
            [
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              "",
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              ""
            ]
          ],
          [
            "tel",
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            },
            "text",
            "+48-22-5156900"
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            "text",
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        },
        {
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      "links": [
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        },
        {
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  "events": [
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      "eventDate": "2015-09-14T11:55:00Z"
    },
    {
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    }
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  "notices": [
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      "links": [
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      },
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  ]
}

Contact details of private individuals are redacted.