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AS WHOIS

Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.

Your public IP address216.73.217.120 IPv4

AS21453

FLEX-AS Flex Ltd. Announcing routes
AS nameFLEX-AS
OrganisationFLEX-MNT
Registry (RIR)RIPE NCC
HandleAS21453
RangeAS21453
Registered26 Jun 2002
Last changed21 May 2026
Abuse contact[email protected]
17IPv4 prefixes
2IPv6 prefixes
17Upstreams
12Downstreams

Upstreams

ASNetwork nameVisibility
AS12389ROSTELECOM-AS PJSC Rostelecom511
AS57304RETNRU-AS JSC "RetnNet"354
AS8641NAUKANET-AS LLC "Nauka-Svyaz"342
AS28917Fiord-AS Fiord Networks, UAB254
AS35598INETCOM INETCOM CARRIER LLC198
AS3216SOVAM-AS PJSC "Vimpelcom"170
AS29076CITYTELECOM-AS Citytelecom LLC116
AS1299TWELVE99 Arelion Sweden AB110
AS20764RASCOM-AS CJSC RASCOM98
AS62255BEMYLINK BiMajLink d.o.o.35
AS25091IP-Max IP-Max SA16
AS47692NESSUS Nessus GmbH12
AS6204ZET-NET INTERKVM HOST SRL7
AS6663TTI-NET Euroweb Romania S.R.L.6
AS50182Proxima_Network Proxima Ltd4

Downstreams

ASNetwork nameVisibility
AS41783ITAEC-AS Informational technologies and electronic communications LLC344
AS48149ITKM-AS Ivanteevskie telecommunicacii Ltd291
AS201646AS_FlexL Flex-l Ltd284
AS49893BITRACE-TELECOM Bitrace telecom Ltd.239
AS34975AZIMUTR-AS Azimut-R Ltd.164
AS35271AVIEL-AS JSC "AVIEL"126
AS216335Kalibr-SB-AS OOO Kalibr SB67
AS199933ELEKTRANET-AS Elektranet Ltd.65
AS57489Telecom-Uslugi-AS LLC "Telecom-Uslugi"65
AS50449RU-KVANTZ Limited Liability Company "Kvant"59
AS213503ITSPROJECT-AS ITS-Project LLC27
AS43567SOUTHTEL-AS UG-TELECOM Ltd.27
IPv4 prefixes (17)
IPv6 prefixes (2)

RPKI-validate all prefixes of AS21453

Contacts

RoleNameHandleEmail / phoneAddress
administrative, technicalAlexey V. MorosovDIFF-RIPE+7 495 7029449, +7 495 7029449for Flex Ltd, Lenina sq 11, 142403 Noginsk, Moscow region, Russian Federation
registrantFLEX-MNTFLEX-MNT
registrantFlex Ltd.ORG-FI3-RIPE+7 495 7029449, +7 495 7029449Noginsk, per. 2-oi Tekstilniy, premis. 201, 142411, Moscow, RUSSIAN FEDERATION
registrantRIPE-NCC-END-MNTRIPE-NCC-END-MNT
abuseAbuse FLEXDIFF-RU[email protected]Lenina Sq. 11 Noginsk 142403 Moscow district Russian Federation
registrantFLEX-MNTFLEX-MNT
Raw registry response
{
    "handle": "AS21453",
    "startAutnum": 21453,
    "endAutnum": 21453,
    "name": "FLEX-AS",
    "status": [
        "active"
    ],
    "entities": [
        {
            "handle": "DIFF-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Alexey V. Morosov"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "adr",
                        {
                            "label": "for Flex Ltd\nLenina sq 11\n142403 Noginsk, Moscow region\nRussian Federation"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+7 495 7029449"
                    ],
                    [
                        "tel",
                        {
                            "type": "fax"
                        },
                        "text",
                        "+7 495 7029449"
                    ]
                ]
            ],
            "roles": [
                "administrative",
                "technical"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/21453",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/DIFF-RIPE"
                },
                {
                    "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                    "rel": "copyright",
                    "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                }
            ],
            "objectClassName": "entity"
        },
        {
            "handle": "FLEX-MNT",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "FLEX-MNT"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ]
                ]
            ],
            "roles": [
                "registrant"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/21453",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/FLEX-MNT"
                },
                {
                    "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                    "rel": "copyright",
                    "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                }
            ],
            "objectClassName": "entity"
        },
        {
            "handle": "ORG-FI3-RIPE",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Flex Ltd."
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "org"
                    ],
                    [
                        "adr",
                        {
                            "label": "Noginsk, per. 2-oi Tekstilniy, premis. 201\n142411\nMoscow\nRUSSIAN FEDERATION"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "tel",
                        {
                            "type": "voice"
                        },
                        "text",
                        "+7 495 7029449"
                    ],
                    [
                        "tel",
                        {
                            "type": "fax"
                        },
                        "text",
                        "+7 495 7029449"
                    ]
                ]
            ],
            "roles": [
                "registrant"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/21453",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/ORG-FI3-RIPE"
                },
                {
                    "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                    "rel": "copyright",
                    "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                }
            ],
            "objectClassName": "entity"
        },
        {
            "handle": "RIPE-NCC-END-MNT",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "RIPE-NCC-END-MNT"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "individual"
                    ],
                    [
                        "org",
                        [],
                        "text",
                        "ORG-NCC1-RIPE"
                    ]
                ]
            ],
            "roles": [
                "registrant"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/21453",
                    "rel": "self",
                    "href": "https://rdap.db.ripe.net/entity/RIPE-NCC-END-MNT"
                },
                {
                    "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                    "rel": "copyright",
                    "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                }
            ],
            "objectClassName": "entity"
        },
        {
            "handle": "DIFF-RU",
            "vcardArray": [
                "vcard",
                [
                    [
                        "version",
                        [],
                        "text",
                        "4.0"
                    ],
                    [
                        "fn",
                        [],
                        "text",
                        "Abuse FLEX"
                    ],
                    [
                        "kind",
                        [],
                        "text",
                        "group"
                    ],
                    [
                        "adr",
                        {
                            "label": "Lenina Sq. 11 Noginsk 142403 Moscow district Russian Federation"
                        },
                        "text",
                        [
                            "",
                            "",
                            "",
                            "",
                            "",
                            "",
                            ""
                        ]
                    ],
                    [
                        "email",
                        {
                            "type": "abuse"
                        },
                        "text",
                        "[email protected]"
                    ]
                ]
            ],
            "roles": [
                "abuse"
            ],
            "entities": [
                {
                    "handle": "FLEX-MNT",
                    "vcardArray": [
                        "vcard",
                        [
                            [
                                "version",
                                [],
                                "text",
                                "4.0"
                            ],
                            [
                                "fn",
                                [],
                                "text",
                                "FLEX-MNT"
                            ],
                            [
                                "kind",
                                [],
                                "text",
                                "individual"
                            ]
                        ]
                    ],
                    "roles": [
                        "registrant"
                    ],
                    "links": [
                        {
                            "value": "https://rdap.db.ripe.net/autnum/21453",
                            "rel": "self",
                            "href": "https://rdap.db.ripe.net/entity/FLEX-MNT"
                        },
                        {
                            "value": "http://www.ripe.net/data-tools/support/documentation/terms",
                            "rel": "copyright",
                            "href": "http://www.ripe.net/data-tools/support/documentation/terms"
                        }
                    ],
                    "objectClassName": "entity"
                }
            ],
            "objectClassName": "entity"
        }
    ],
    "remarks": [
        {
            "description": [
                "------------------------------------------------",
                "= IPv4 Upstream routing policy",
                "BEELINE-RU",
                "RETN-RU",
                "NAUKA",
                "CITYTELECOM / FILANCO",
                "RASCOM",
                "TTK",
                "INETKOM",
                "FIORD",
                "ROSTELECOM",
                "= IPv4 IX routing policy",
                "MSK-IX",
                "DATA-IX",
                "GLOBAL-IX",
                "PITER-IX",
                "PITER-IX SPB",
                "PITER-IX FRANKFURT",
                "PITER-IX TLL",
                "PITER-IX HEL",
                "PITER-IX RIX",
                "= IPv4 Peering routing policy",
                "RUNNET",
                "IIPNET",
                "Eurasia Telekom",
                "Cloudflare",
                "Alibaba Group",
                "MACOMNET",
                "META",
                "GOOGLE",
                "Youtube",
                "NETORN",
                "VK",
                "Lifestream",
                "= IPv4 Downstream routing policy",
                "AVIEL",
                "ITAEC",
                "IIF",
                "ITKM",
                "AZIMUT-R",
                "WELLCOMM",
                "Telekom Uslugi",
                "Cifrabar",
                "Bitrace",
                "Link Net",
                "SouthTel",
                "Flex-L",
                "Elektranet",
                "Kvant",
                "= IPv6 Upsteam routing policy",
                "Beeline",
                "Filanco",
                "iHome",
                "= IPv6 IX routing policy",
                "Piter IX MSK",
                "Piter IX SPB",
                "= IPv6 Peering routing policy",
                "= IPv6 Downstream routing policy",
                "================================================",
                "= BGP community accepted only from customers",
                "21453:100x When advertising to MSK-IX peers",
                "21453:110x When advertising to Beeline",
                "21453:120x When advertising to Rascom",
                "21453:130x When advertising to Filanco",
                "21453:140x When advertising to NSV",
                "21453:150x When advertising to Rostelecom",
                "21453:180x When advertising to DataIX",
                "21453:190x When advertising to RETN-RU",
                "21453:200x When advertising to GlobalIX",
                "21453:210x When advertising to PiterIX",
                "21453:220x When advertising to TTK",
                "21453:230x When advertising to Netorn",
                "21453:240x When advertising to Inetcom",
                "21453:250x When advertising to Fiord",
                "21453:290x When advertising to Lifestream",
                "...x=0 - do not advertise",
                "...x=1,2 or 3 - prepend 21453 1,2 or 3 times",
                "21453:0 Set localpref 50",
                "21453:666 blackhole for /32"
            ]
        }
    ],
    "links": [
        {
            "value": "https://rdap.db.ripe.net/autnum/21453",
            "rel": "rdap-up",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS21453",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21453",
            "rel": "rdap-up rdap-active",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS21453?status=active",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21453",
            "rel": "rdap-down",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS21453",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21453",
            "rel": "rdap-top",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS21453",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21453",
            "rel": "rdap-top rdap-active",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS21453?status=active",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21453",
            "rel": "rdap-bottom",
            "href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS21453",
            "type": "application/rdap+json"
        },
        {
            "value": "https://rdap.db.ripe.net/autnum/21453",
            "rel": "self",
            "href": "https://rdap.db.ripe.net/autnum/21453",
            "type": "application/rdap+json"
        },
        {
            "value": "http://www.ripe.net/data-tools/support/documentation/terms",
            "rel": "copyright",
            "href": "http://www.ripe.net/data-tools/support/documentation/terms"
        }
    ],
    "events": [
        {
            "eventAction": "registration",
            "eventDate": "2002-06-26T09:03:58Z"
        },
        {
            "eventAction": "last changed",
            "eventDate": "2026-05-21T11:08:56Z"
        }
    ],
    "rdapConformance": [
        "nro_rdap_profile_asn_flat_0",
        "rirSearch1",
        "autnums",
        "cidr0",
        "rdap_level_0",
        "nro_rdap_profile_0",
        "redacted"
    ],
    "notices": [
        {
            "title": "Filtered",
            "description": [
                "This output has been filtered."
            ]
        },
        {
            "title": "Whois Inaccuracy Reporting",
            "description": [
                "If you see inaccuracies in the results, please visit:"
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/21453",
                    "rel": "inaccuracy-report",
                    "href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
                    "type": "text/html"
                }
            ]
        },
        {
            "title": "Source",
            "description": [
                "Objects returned came from source",
                "RIPE"
            ]
        },
        {
            "title": "Terms and Conditions",
            "description": [
                "This is the RIPE Database query service. The objects are in RDAP format."
            ],
            "links": [
                {
                    "value": "https://rdap.db.ripe.net/autnum/21453",
                    "rel": "terms-of-service",
                    "href": "http://www.ripe.net/db/support/db-terms-conditions.pdf",
                    "type": "application/pdf"
                }
            ]
        }
    ],
    "port43": "whois.ripe.net",
    "objectClassName": "autnum",
    "redacted": [
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='DIFF-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='ORG-FI3-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        },
        {
            "name": {
                "description": "Personal e-mail information"
            },
            "reason": {
                "description": "Personal data"
            },
            "prePath": "$.entities[?(@.handle=='DIFF-RU')].vcardArray[1][?(@[0]=='e-mail')]",
            "method": "removal"
        }
    ]
}

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