Free network tools
AS WHOIS
Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
Network Report (All-in-one) BGP Looking Glass BGP Security Check RPKI Validator BGP Hijack & Leak Monitor ASN Intelligence Internet Outages & Anomalies Country Internet Report Domain Insights IP WHOIS AS WHOIS
AS209554
ISIF-AS ISIF OU Announcing routesAS nameISIF-AS
OrganisationISIF-MNT
Registry (RIR)RIPE NCC
HandleAS209554
RangeAS209554
Registered27 Dec 2022
Last changed09 Dec 2025
Abuse contact[email protected]
36IPv4 prefixes
42IPv6 prefixes
8Upstreams
4Downstreams
IPv4 prefixes (36)
152.175.9.0/24152.175.22.0/23152.175.2.0/24152.175.66.0/24152.175.5.0/24152.175.14.0/24152.175.34.0/24152.175.1.0/24152.175.12.0/24152.175.4.0/23152.175.7.0/2445.95.212.0/24152.175.20.0/23152.175.65.0/24152.175.12.0/22152.175.8.0/22152.175.10.0/24152.175.16.0/22152.175.20.0/22152.175.6.0/24152.175.4.0/22152.175.11.0/24152.175.33.0/24152.175.10.0/23152.175.6.0/23152.175.8.0/24152.175.8.0/23152.175.13.0/24152.175.4.0/24152.175.97.0/24152.175.22.0/24152.175.21.0/24152.175.20.0/24152.175.23.0/2482.163.170.0/2382.163.168.0/23
IPv6 prefixes (42)
2405:84c0:8052::/482405:84c0:8012::/472a0a:6040:ad00::/402405:84c0:8001::/482a0b:1187:1000::/442405:84c0:8040::/482405:84c0:8005::/482405:84c0:8011::/482405:84c0:8047::/482405:84c0:8035::/482405:84c0:8014::/462405:84c0:804f::/482001:df1:4580::/482405:84c0:8004::/482a0b:1187:4000::/442a0b:1187:3000::/442a0b:1187:5000::/442405:84c0:801a::/482405:84c0:8051::/482405:84c0:8024::/472a0b:1187:2000::/442405:84c0:8018::/482405:84c0:8026::/472405:84c0:803f::/482405:84c0:8008::/472405:84c0:a100::/482405:84c0:801b::/482405:84c0:8034::/482405:84c0:8032::/482405:84c0:8046::/482405:84c0:8028::/452405:84c0:8022::/472405:84c0:8033::/482405:84c0:8003::/482405:84c0:8054::/462405:84c0:8007::/482405:84c0:8031::/482405:84c0:6f00::/402405:84c0:8030::/482405:84c0:801d::/482405:84c0:801c::/482405:84c0:8060::/48
RPKI-validate all prefixes of AS209554
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| administrative, technical | Abuse contact role object | ACRO50705-RIPE | [email protected] | Harju maakond, Tallinn, Põhja-Tallinna linnaosa, Kalasadama tn 4, 10415 |
| registrant | ISIF-MNT | ISIF-MNT | ||
| registrant | ISIF OU | ORG-ISIF2-RIPE | Harju maakond, Tallinn, Lasnamäe linnaosa, Sepapaja tn 6, 15551 | |
| registrant | RIPE-NCC-END-MNT | RIPE-NCC-END-MNT | ||
| abuse | Abuse contact role object | ACRO50705-RIPE | [email protected] | Harju maakond, Tallinn, Põhja-Tallinna linnaosa, Kalasadama tn 4, 10415 |
| registrant | ISIF-MNT | ISIF-MNT |
Raw registry response
{
"handle": "AS209554",
"startAutnum": 209554,
"endAutnum": 209554,
"name": "ISIF-AS",
"status": [
"active"
],
"entities": [
{
"handle": "ACRO50705-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Abuse contact role object"
],
[
"kind",
[],
"text",
"group"
],
[
"adr",
{
"label": "Harju maakond, Tallinn, Põhja-Tallinna linnaosa, Kalasadama tn 4, 10415"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"administrative",
"technical"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ACRO50705-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": "ISIF-MNT",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"ISIF-MNT"
],
[
"kind",
[],
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ISIF-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-ISIF2-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"ISIF OU"
],
[
"kind",
[],
"text",
"org"
],
[
"adr",
{
"label": "Harju maakond, Tallinn, Lasnamäe linnaosa, Sepapaja tn 6, 15551"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ORG-ISIF2-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/209554",
"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": "ACRO50705-RIPE",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Abuse contact role object"
],
[
"kind",
[],
"text",
"group"
],
[
"adr",
{
"label": "Harju maakond, Tallinn, Põhja-Tallinna linnaosa, Kalasadama tn 4, 10415"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"email",
{
"type": "abuse"
},
"text",
"[email protected]"
]
]
],
"roles": [
"abuse"
],
"entities": [
{
"handle": "ISIF-MNT",
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"ISIF-MNT"
],
[
"kind",
[],
"text",
"individual"
]
]
],
"roles": [
"registrant"
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "self",
"href": "https://rdap.db.ripe.net/entity/ISIF-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"
}
],
"links": [
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "rdap-up",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS209554",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "rdap-up rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-up/AS209554?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "rdap-down",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-down/AS209554",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "rdap-top",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS209554",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "rdap-top rdap-active",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-top/AS209554?status=active",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "rdap-bottom",
"href": "https://rdap.db.ripe.net/autnums/rirSearch1/rdap-bottom/AS209554",
"type": "application/rdap+json"
},
{
"value": "https://rdap.db.ripe.net/autnum/209554",
"rel": "self",
"href": "https://rdap.db.ripe.net/autnum/209554",
"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": "2022-12-27T09:39:07Z"
},
{
"eventAction": "last changed",
"eventDate": "2025-12-09T09:37:56Z"
}
],
"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/209554",
"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/209554",
"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": "$.entities[?(@.handle=='ACRO50705-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='ORG-ISIF2-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
"description": "Personal data"
},
"prePath": "$.entities[?(@.handle=='ACRO50705-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
}
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.
