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AS5538
SigmaNet-NIC Institute of Mathematics and Computer Science of University of Latvia Announcing routesAS nameSigmaNet-NIC
Organisationlumii-mnt
Registry (RIR)RIPE NCC
HandleAS5538
RangeAS5538
Registered22 Aug 2002
Last changed29 Jul 2026
Abuse contact[email protected]
5IPv4 prefixes
2IPv6 prefixes
7Upstreams
11Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS6939 | HURRICANE - Hurricane Electric LLC | 431 |
| AS174 | COGENT-174 - Cogent Communications, LLC | 410 |
| AS21320 | GEANT_IAS_VRF GEANT Vereniging | 229 |
| AS8194 | VITA VAS "Latvijas Valsts radio un televizijas centrs" | 120 |
| AS34073 | ACAD-NET LR Izglitibas un zinatnes ministrija | 91 |
| AS20965 | GEANT GEANT Vereniging | 79 |
| AS1257 | SWIPNET - Tele2 Sverige AB | 5 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS29345 | LUMII Institute of Mathematics and Computer Science of University of Latvia | 261 |
| AS199029 | World-Registry-of-Internet-Domains-AS World Registry of Internet Domains LTD | 140 |
| AS199031 | AmberBit SIA Amberbit | 139 |
| AS34073 | ACAD-NET LR Izglitibas un zinatnes ministrija | 91 |
| AS51955 | NIC-LV-ANYCAST-AS Institute of Mathematics and Computer Science of University of Latvia | 90 |
| AS10906 | AS10906 - Nucleo de Inf. e Coord. do Ponto BR - NIC.BR | 72 |
| AS8605 | LANET University of Latvia | 54 |
| AS44358 | DOMREG-ANY-AS Kauno Technologijos Universitetas | 16 |
| AS29067 | UATLD-AS LLC "Hostmaster" | 6 |
| AS25152 | K-ROOT-SERVER Reseaux IP Europeens Network Coordination Centre (RIPE NCC) | 3 |
| AS8674 | NETNOD-IX Netnod AB | 1 |
IPv4 prefixes (5)
IPv6 prefixes (2)
RPKI-validate all prefixes of AS5538
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| administrative, technical | LUMII Services and Support | LSaS2-RIPE | [email protected], +371-67211241 | Raina blvd. 29 RIGA, SigmaNet |
| registrant | lumii-mnt | LUMII-MNT | ||
| registrant | Institute of Mathematics and Computer Science of University of Latvia | ORG-IOMA1-RIPE | +37167211241, +37167085858 | Raina bulvaris 29, LV-1459, Riga, LATVIA |
| registrant | RIPE-NCC-END-MNT | RIPE-NCC-END-MNT | ||
| abuse | LUMII Services and Support | LSaS2-RIPE | [email protected], +371-67211241 | Raina blvd. 29 RIGA, SigmaNet |
| administrative | Kristine Kaula | KA1288-RIPE | +371-67211241 | Institute of Mathematics and Computer Science,, University of Latvia, Raina bulvaris 29, Riga, LV-1459,, Latvia |
| registrant | lumii-mnt | lumii-mnt | ||
| administrative, technical | Martins Libins | ML6499-RIPE | +371-67211241 | LUMII, Raina bulvaris 29., LV-1459 Riga, Latvia |
| technical | Maris Ozolins | MO8970-RIPE | +371 28326757 |
Raw registry response
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},
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},
{
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},
{
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}
],
"events": [
{
"eventAction": "registration",
"eventDate": "2002-08-22T14:00:42Z"
},
{
"eventAction": "last changed",
"eventDate": "2026-07-29T07:03:19Z"
}
],
"rdapConformance": [
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"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/5538",
"rel": "inaccuracy-report",
"href": "https://www.ripe.net/contact-form?topic=ripe_dbm&show_form=true",
"type": "text/html"
}
]
},
{
"title": "Source",
"description": [
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"RIPE"
]
},
{
"title": "Terms and Conditions",
"description": [
"This is the RIPE Database query service. The objects are in RDAP format."
],
"links": [
{
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}
]
}
],
"port43": "whois.ripe.net",
"objectClassName": "autnum",
"redacted": [
{
"name": {
"description": "Personal e-mail information"
},
"reason": {
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},
"prePath": "$.entities[?(@.handle=='LSaS2-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
"method": "removal"
},
{
"name": {
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},
"reason": {
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},
"prePath": "$.entities[?(@.handle=='ORG-IOMA1-RIPE')].vcardArray[1][?(@[0]=='e-mail')]",
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},
{
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"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.