AS199902 — SE-LM Lantmateriet

AS199902 announces 6 IPv4 prefixes covering 1,792 addresses and 2 IPv6 prefixes.

About this network

SE-LM is operated by Lantmateriet, the National Land Survey of Sweden.

What it's used for

• The address space carries geospatial and surveying services, evidenced by netnames LANDSUR-NET and reverse DNS entries such as download-ver.lantmateriet.se and ntrip-swepos02.lm.se.
• The AS announces 1792 IPv4 addresses across 6 prefixes and 2 IPv6 prefixes, with 25 observed neighbours, indicating a government agency network with moderate peering for data distribution and service access.
• Traffic consists of web and API endpoints for map data, cadastral records, and NTRIP GNSS positioning services used by surveyors and the public.

Notable

• Registrants for five of the six IPv4 prefixes are listed as Lantmateriet; The National Land Survey of Sweden, while the largest prefix 192.71.190.0/23 is registered to Resilans AB under netname SE-RESILANS-20000317.
• The address inventory is finely subdivided into small /24 blocks alongside one /23, consistent with an internal corporate estate segmented by service or site.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 192.36.83.0/24
• 192.36.97.0/24
• 192.71.188.0/24
• 192.71.190.0/23
• 192.121.3.0/24
• 192.121.120.0/24
• 2001:67c:268c::/48
• 2a01:280:301::/48

Upstream networks

• AS3301 Telia Company AB
• AS6939 Hurricane Electric LLC
• AS50304 Blix Solutions AS
• AS33891 Core-Backbone GmbH
• AS5405 Inter.link GmbH
• AS35280 F5 Networks SARL
• AS24482 SG.GS
• AS20764 CJSC RASCOM
• AS12552 GlobalConnect AB
• AS20473 The Constant Company, LLC

Adjacent networks

• AS3301 Telia Company AB
• AS6939 Hurricane Electric LLC
• AS50304 Blix Solutions AS
• AS33891 Core-Backbone GmbH
• AS35280 F5 Networks SARL
• AS24482 SG.GS
• AS5405 Inter.link GmbH
• AS12552 GlobalConnect AB
• AS20764 CJSC RASCOM
• AS20473 The Constant Company, LLC

Routing security

• RPKI: 9 valid, 0 invalid and 0 not-found announcements; 11 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 11 route objects.
• Listed in as-sets: AS-LANTMATERIET, AS-TELIANETSE, AS-TELIANETSE-V6.

Internet exchanges

• Netnod Sundsvall- Gävle — Sundsvall, Sweden