Autonomous system
AS11703 MARS-DISCOVERY-DISTRICT
Unclassified ARIN
Summary
MaRS Discovery District
enterprise research legacy
MARS-DISCOVERY-DISTRICT is the network of the MaRS Discovery District, the innovation hub and research-tenant complex in downtown Toronto (the MaRS Centre, adjacent to the University of Toronto and the city's hospital district). It runs a building network for its tenants, which are startups, research groups and health-innovation organisations.
What it's used for
- Serving the MaRS Centre itself. RIS sees 2 IPv4 prefixes / 768 addresses, 2 IPv6 /48s (
2602:f609:1::/48,2602:f609:2::/48) and 2 observed neighbours. Two upstreams, a few hundred addresses, dual-stacked: a well-run campus/building edge, and far too small to be anyone's provider.
Notable
- Both prefixes register to org MaRS Discovery District, and the network handles carry the organisation's own history:
MARS-PHASE-1-INVESTMENT-TRUST-CGNT-NET-1for the Cogent space at38.116.198.0/23, andMARS-INNOVATION-HUBS-V4-NET-1for198.102.109.0/24. The-CGNT-fragment marks provider-assigned Cogent space reassigned to the customer — a normal SWIP reassignment, not a third-party registrant, and not the leased-address pattern. - "Phase 1 Investment Trust" in a netname reflects the real-estate vehicle that owns the building, which is exactly the kind of internal legal-entity name that makes registry handles look stranger than the operator is.
- The sampled PTR
38.116.198.5 -> legacy.edge.marscentre.cais first-party rDNS naming an edge device on the MaRS Centre's own domain, and the wordlegacysuggests this block is the older half of a network that has been renumbered around it.
Interesting
- MaRS is a landlord and a convener rather than a technology company, so the addresses here carry a rotating cast of tenant organisations rather than a single business.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 768 addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CA | Canada | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11703- Registry name
- MARS-DISCOVERY-DISTRICT
- Registrant
- MaRS Discovery District
- Abuse contact
- tkerr@marsdd.com
- Registered
- 2006-07-12
- Last changed
- 2024-10-25
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 3 authorising AS11703
- ASPA
- 3 declared providers
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 8 naming AS11703
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: 447 networks and 1,848 prefixes, as published 2026-10-31. 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