Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS201913

Announcement observedRIPE NCC

Theorema Telecom Limited · THEOREMA-EXT

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/10/2026, 04:36:49Snapshot expired

View network topology RDAP registration

ASN: AS201913
Registration country: Russia
Name: Theorema Telecom Limited
Abbreviation: THEOREMA-EXT
Registration date: 10/25/2022, 09:23:37
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
185.77.11.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/26/2026, 00:00:00	10/10/2026, 00:00:00	✓	×	Historical record

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Theorema Telecom Limited
RIR: RIPE NCC
Registration country: Russia
Registration date: 10/25/2022, 09:23:37
Abuse contact: lir@teorema.info

Snapshot trend

10/10/2026, 04:36:491 v40 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn