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AS53521

CDS-200 - Complete Discovery Source

United States (US)

ASN Information

AS NumberAS53521
AS NameCDS-200
OrganizationCDS-200 - Complete Discovery Source
Also known asNot available
CountryUnited States (US)
RegistryARIN
ASN TypeNot available
Last Seen
Announcement Count2
IPv4 Prefix Count2
IPv6 Prefix Count0
RPKI StatusNotFound ×2
IRR RecordsView IRR route objects
WebsiteNot available

AS Path to AS53521

  1. 37271Workonline Communications(Pty) Ltd - Workonline Communications(Pty) Ltd
  2. 6461ZAYO-6461 - Zayo Bandwidth
  3. 53521Origin

Most common path, seen 4× in route collector data, latest at a collector in Johannesburg (2026-10-19 17:05:32 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 16 peer session(s)Johannesburg: 19 peer session(s)Singapore: 21 peer session(s)Amsterdam: 24 peer session(s)London: 31 peer session(s)Eugene, OR: 57 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 (2)

View All →
PrefixFamilyRPKILast Seen
38.125.93.0/24IPv4NotFoundNot looked up yet
154.60.112.0/24IPv4NotFoundNot looked up yet

Peers (3)

View All →
ASNameRelationshipPathsLast Seen
AS6461ZAYO-6461 - Zayo BandwidthUpstream (inferred)175
AS54004LIGHTPATH - Cablevision Lightpath LLCUpstream (inferred)174
AS174COGENT-174 - Cogent Communications, LLCUpstream (inferred)4

Neighbours seen next to AS53521 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 AS53521.

IX ports registered by AS53521 (self-reported by the network).

Interconnection Facilities (0)

No interconnection facilities are registered for AS53521.

Data centres where AS53521 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETNot available
Member of AS-SETsSee IRR page
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 AS53521.

Only contacts the network has chosen to publish are shown.

Upstreams (3)

ASNameRelationshipPathsLast Seen
AS6461ZAYO-6461 - Zayo BandwidthUpstream (inferred)175
AS54004LIGHTPATH - Cablevision Lightpath LLCUpstream (inferred)174
AS174COGENT-174 - Cogent Communications, LLCUpstream (inferred)4

Downstreams (0)

No downstream ASNs found for AS53521 in current data sources.

Registry and network details

Registered holderCDS-200 - Complete Discovery Source
RegisteredYes
Peering policyNot available
IRR AS-setNot available
Registry record last modifiedNot available
MaintainersNot available
Internet exchangesNot available
FacilitiesNot available
Network profile updatedNot available

Data updated . See limitations.