asn.dev

Autonomous system

AS50183 CENTURY-LTD

Unclassified RIPE

IPv4 addresses 8.96K 13 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly MH
Exchanges 0 recorded by PCH
Upstreams 5 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

5 upstream, 0 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS1299Arelion Sweden AB333
AS6939Hurricane Electric LLC105
AS3257GTT Communications Inc.90
AS24482SG.GS10
AS35280F5 Networks SARL1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 13 prefixes · 8.96K addresses IPv6 0 prefixes

CountryNamePrefixes
MHMarshall Islands13

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS50183
Registry name
Century-LTD
Registrant
lir-mh-centurynetworks-1-MNT
Abuse contact
admin@10g.lu
Registered
2023-01-04
Last changed
2023-01-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 10 valid, 0 with no ROA
ROAs
10 authorising AS50183
ASPA
no ASPA record
IRR
100% registered · 10 of 10 announcements
Route objects
13 naming AS50183

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check