Home ASN LookupAS5538

AS5538 SigmaNet-NIC Institute of Mathematics and Computer Science of University of Latvia

🇱🇻

Org handle: ORG-IOMA1-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

7total

5 IPv42 IPv6

IPv4 Addresses

Allocated (RIR)27,904

Announced (BGP)27,904

IPv6 Addresses

Allocated (RIR)6.3×10²⁹

Announced (BGP)6.4×10²⁹

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇱🇻 LV

RIR

RIPE NCC

Status

allocated

Allocated

1996-02-05

Announced Prefixes

(BGP)7

Prefix	RPKI	IRR	Last Seen
5.152.224.0/21	Valid	RIPE	2026-10-08
85.254.192.0/18	Valid	RIPE	2026-10-08
92.240.64.0/19	Valid	RIPE	2026-10-08
185.23.160.0/22	Valid	RIPE	2026-10-08
194.8.1.0/24	Valid	RIPE	2026-10-08
2a02:500::/29	Valid	RIPE	2026-10-08
2a02:500:4000::/35	Valid	RIPE	2026-10-08

Allocated Prefixes

(RIR)6

Prefix	Country	RIR	Status
5.152.224.0/21	🇱🇻 LV	RIPENCC	allocated
85.254.192.0/18	🇱🇻 LV	RIPENCC	allocated
92.240.64.0/19	🇱🇻 LV	RIPENCC	allocated
185.23.160.0/22	🇱🇻 LV	RIPENCC	allocated
194.8.1.0/24	🇱🇻 LV	RIPENCC	allocated
2a02:500::/29	🇱🇻 LV	RIPENCC	allocated

All 7 announced prefixes of AS5538 →

BGP Neighbours

(seen in AS paths)

Upstreams (3)

Networks AS5538 hands its own prefixes to: transit providers, or peers at an exchange.

AS34073ACAD NET LR Izglitibas Un Zinatnes Ministrija4
AS174Cogent Communications2
AS6939Hurricane Electric1

Downstreams (5)

Networks whose own prefixes AS5538 passes on: usually its customers.

AS51955NIC LV ANYCAST Institute Of Mathematics And Computer Science Of University Of Latvia4
AS199029World Registry Of Internet Domains World Registry Of Internet Domains4
AS29345LUMII Institute Of Mathematics And Computer Science Of University Of Latvia3
AS8605LANET University Of Latvia1
AS199031AmberBit SIA Amberbit1

Other adjacent networks (2)

Adjacent to AS5538 in the transit part of AS paths: peers, providers or customers.

AS8194VITA VAS "Latvijas Valsts Radio Un Televizijas Centrs"6
AS20965GEANT Vereniging4

ASPA

No ASPA

Abuse Contact

+31205354444

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS5538 should publish an ASPA object
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/5538

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/5538" | jq