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AS1837

NATO Communications and Information Agency

European Union (EU)

ASN Information

AS NumberAS1837
AS NameNCIA
OrganizationNATO Communications and Information Agency
Also known asNot available
CountryEuropean Union (EU)
RegistryRIPE NCC
ASN TypeNot available
Last Seen
Announcement Count1
IPv4 Prefix Count1
IPv6 Prefix Count0
RPKI StatusNotFound ×1
IRR RecordsAvailable (29 route objects)
WebsiteNot available

AS Path to AS1837

  1. 58511ANYCAST-GLOBAL-BACKBONE - Anycast Global Backbone
  2. 1103SURFNET-NL SURF B.V.
  3. 1837Origin

Most common path, seen 4× in route collector data, latest at a collector in Singapore (2026-10-19 21:34:19 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 16 peer session(s)Johannesburg: 19 peer session(s)Singapore: 22 peer session(s)Amsterdam: 27 peer session(s)London: 35 peer session(s)Eugene, OR: 59 peer session(s)
High (10+ peers)Medium (3–9)Low (1–2)

Approximate route collector locations, coloured by peer sessions carrying this AS's routes.

Announced Prefixes (1)

View All →
PrefixFamilyRPKILast Seen
192.41.140.0/24IPv4NotFoundNot looked up yet

Peers (1)

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ASNameRelationshipPathsLast Seen
AS1103SURFNET-NL SURF B.V.Upstream (inferred)189

Neighbours seen next to AS1837 in public AS paths. These are not confirmed BGP sessions; peer IP addresses and locations are not published by these sources.

Public Peering Exchange Points (0)

IX Updates →

No Internet Exchange ports are registered for AS1837.

IX ports registered by AS1837 (self-reported by the network).

Interconnection Facilities (0)

No interconnection facilities are registered for AS1837.

Data centres where AS1837 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETNot available
Member of AS-SETsAS-NATO, AS-BELNET, AS1103:AS-SURF, AS-SURFNET
Peering policyNot available
Multiple locationsNot available
Ratio requirementNot available
ContractNot available
TrafficNot available
Traffic ratioNot available
Geographic scopeNot available
Max prefixes (IPv4 / IPv6)Not available
Unicast / IPv6 / MulticastNot available
Looking glassNot available
Route serverNot available

Contact Information (0)

No public contacts are registered for AS1837.

Only contacts the network has chosen to publish are shown.

Upstreams (1)

ASNameRelationshipPathsLast Seen
AS1103SURFNET-NL SURF B.V.Upstream (inferred)189

Downstreams (0)

No downstream ASNs found for AS1837 in current data sources.

Registry and network details

Registered holderNCIA - The North Atlantic Treaty Organization
RegisteredYes
Peering policyNot available
IRR AS-setNot available
Registry record last modified
MaintainersAS1837-MNT, NATO-MNT1
Internet exchangesNot available
FacilitiesNot available
Network profile updatedNot available

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Data updated . See limitations.