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AS31027GlobalConnect A/S

DenmarkRegistryRIPE NCCTypeCarrier

As of 26th September 2026, AS31027 (GlobalConnect A/S), a transit carrier registered in Denmark with RIPE NCC, originates 133 IPv4 prefixes covering 401k addresses and 13 IPv6 prefixes. By IPv4 address space that makes it the 812th-largest of the 79,516 networks we see originating IPv4, and the 4th-largest of 328 in Denmark. It is seen behind 39 upstream networks, most often AS12552 (GlobalConnect (IP-Only)) and AS3356 (Lumen (Level 3)), and in front of 345 downstream networks. 64% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 94% of its routes reach at least 90% of full-feed peers, and 9 prefixes are also originated by another network.

At a glance

IPv4 prefixes

133

IPv6 prefixes

13

IPv4 addresses

401k

IPv6 /64s

133B

Upstream graph

The networks AS31027 is seen behind, one and two hops out, drawn from real AS paths.

AS31027Toward the internet core
Upstream graph for AS31027: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS31027GlobalConnect A/SThis networkAS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS7768Nuh Ahmet Firat t…AS8888xTom Pty LtdAS12552GlobalConnect (IP…AS13030Init7 (Switzerlan…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS44901Belcloud LTDAS6939Hurricane Electri…AS137409GSL Networks Pty …AS49788Nexthop AS

Networks observed one and two hops upstream of AS31027 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

1,441

adjacent networks

Upstreams
393%
Peers
1,05773%
Downstreams
34524%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS31027
NetworkCountryRelationshipPathsVantage pts
AS12552GlobalConnect (IP-Only)SEPeer20,33660
AS3356Lumen (Level 3)USPeer14,13258
AS1299Arelion (fka. Telia Carrier)SEPeer9,74874
AS8888xTom Pty LtdAUPeer3,0912
AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERITRPeer3,0902
AS213151Christian ElsenDEPeer3,0872
AS32590Valve CorporationUSPeer2,8392
AS38880Micron21 Datacentre Pty LtdAUPeer2,5692
AS9002RETN LimitedGBPeer2,15311
AS13030Init7 (Switzerland) Ltd.CHPeer2,0344

Prefixes

All 146

The largest blocks AS31027 originates, widest first.

Largest prefixes originated by AS31027
PrefixAddressesVisibility
94.18.0.0/1665.5k81/81
152.115.128.0/1732.8k81/81
83.151.128.0/1816.4k81/81
87.116.0.0/1816.4k81/81
88.212.64.0/1816.4k81/81
93.176.64.0/1816.4k81/81
152.115.64.0/1816.4k81/81
62.116.192.0/198.2k81/81
77.233.224.0/198.2k81/81
78.153.160.0/198.2k81/81

Routing health

How AS31027's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid64.4%94
  • Invalid0.0%0
  • No ROA35.6%52

Propagation

  • Globally propagated90% of full-feed peers or more93.8%137
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%6.2%9

Prefix sizes

IPv4 — 133 prefixes

IPv6 — 13 prefixes

  • /2934.4B × /6423.1%3
  • /324.3B × /6453.8%7
  • /4016.8M × /647.7%1
  • /4865.5k × /6415.4%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced2a00:4961::/3222nd Sept 2026
  • Withdrawn185.127.96.0/2421st Sept 2026
  • Withdrawn2a02:460::/3221st Sept 2026

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.