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AS21391

TDA AS Maintainer

Algeria (DZ)

ASN Information

AS NumberAS21391
AS NameTDA-AS
OrganizationTDA AS Maintainer
Also known asNot available
CountryAlgeria (DZ)
RegistryAFRINIC
ASN TypeNot available
Last Seen
Announcement Count1
IPv4 Prefix Count1
IPv6 Prefix Count0
RPKI StatusNotFound ×1
IRR RecordsView IRR route objects
WebsiteNot available

AS Path to AS21391

  1. 37271Workonline Communications(Pty) Ltd - Workonline Communications(Pty) Ltd
  2. 6774ASN-BICS Belgacom International Carrier Services SA
  3. 36947Telecom Algeria - Telecom Algeria
  4. 21391Origin

Most common path, seen 4× in route collector data, latest at a collector in London (2026-10-20 10:07:23 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 16 peer session(s)Johannesburg: 18 peer session(s)Singapore: 22 peer session(s)Amsterdam: 24 peer session(s)London: 31 peer session(s)Eugene, OR: 56 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
80.246.0.0/20IPv4NotFoundNot looked up yet

Peers (1)

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ASNameRelationshipPathsLast Seen
AS36947Telecom Algeria - Telecom AlgeriaUpstream (inferred)178

Neighbours seen next to AS21391 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 AS21391.

IX ports registered by AS21391 (self-reported by the network).

Interconnection Facilities (0)

No interconnection facilities are registered for AS21391.

Data centres where AS21391 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 AS21391.

Only contacts the network has chosen to publish are shown.

Upstreams (1)

ASNameRelationshipPathsLast Seen
AS36947Telecom Algeria - Telecom AlgeriaUpstream (inferred)178

Downstreams (0)

No downstream ASNs found for AS21391 in current data sources.

Registry and network details

Registered holderAlgerian Broadcasting (Tele Diffusion d'Algerie TDA) - Algerian Broadcasting (Tele Diffusion d'Algerie TDA)
RegisteredYes
Peering policyNot available
IRR AS-setNot available
Registry record last modifiedNot available
MaintainersAFRINIC-HM-MNT
Internet exchangesNot available
FacilitiesNot available
Network profile updatedNot available

Data updated . See limitations.