subnet.im

AS31027GlobalConnect A/S

DenmarkRegistryRIPE NCCTypeCarrier

As of 11th November 2026, AS31027 (GlobalConnect A/S), a transit carrier registered in Denmark with RIPE NCC, originates 136 IPv4 prefixes covering 404k addresses and 13 IPv6 prefixes. By IPv4 address space that makes it the 820th-largest of the 80,743 networks we see originating IPv4, and the 4th-largest of 328 in Denmark. It is seen behind 15 upstream networks, most often AS6797 (GlobalConnect AB) and AS3356 (Lumen (Level 3)), and in front of 174 downstream networks. 64% of its announcements have a valid RPKI ROA; 3 are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers, and 11 prefixes are also originated by another network.

At a glance

IPv4 prefixes

136

IPv6 prefixes

13

IPv4 addresses

404k

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)AS6797GlobalConnect ABAS6939Hurricane Electri…AS12552GlobalConnect (IP…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS7713PT Telkom Indones…AS20130Depaul UniversityAS49788Nexthop 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

419

adjacent networks

Upstreams
154%
Peers
23055%
Downstreams
17442%

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

Upstreams of AS31027
NetworkCountryRelationshipPathsVantage pts
AS6797GlobalConnect ABSEPeer20,46061
AS3356Lumen (Level 3)USPeer16,88067
AS1299Arelion (fka. Telia Carrier)SEPeer7,61482
AS12552GlobalConnect (IP-Only)SEPeer5,13172
AS6939Hurricane Electric LLCUSPeer1,12514
AS9002RETN LimitedGBPeer7486
AS37271Workonline Communications(Pty) LtdZAPeer6172
AS35280F5 Networks SARLFRPeer5103
AS3214xTom GmbHDEPeer4991
AS4637Telstra International LimitedHKPeer2815

Prefixes

All 149

The largest blocks AS31027 originates, widest first.

Largest prefixes originated by AS31027
PrefixAddressesVisibility
94.18.0.0/1665.5k76/76
152.115.128.0/1732.8k76/76
83.151.128.0/1816.4k76/76
87.116.0.0/1816.4k76/76
88.212.64.0/1816.4k76/76
93.176.64.0/1816.4k76/76
152.115.64.0/1816.4k76/76
62.116.192.0/198.2k76/76
77.233.224.0/198.2k76/76
78.153.160.0/198.2k76/76

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

  • Valid63.8%95
  • Invalid2.0%3
  • No ROA34.2%51

Propagation

  • Globally propagated90% of full-feed peers or more90.6%135
  • Partially propagated40% to 90%0.7%1
  • Seen by few peersUnder 40%8.7%13

Prefix sizes

IPv4 — 136 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 12th Oct 2026.

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