Data as of Nov 6, 2026
142.51.252.0/22
No anonymizer space · no proxy exits in 30 daysVianet Inc. · space held by Laurentian University of Sudbury
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 142.51.192.0/18 since Jan 2017 | AS5690 | Residential | 460 10 always on | Laurentian University of Sudbury via Vianet |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 142.51.0.0/16 | 65,536 | LARU | Laurentian University of Sudbury (LARU-Z) · CA | Direct Allocation | Jun 6, 1991 | noc@ |
| └ 142.51.192.0/18 | 16,384 | VIANET-LAUR-01 | Vianet (VIS) · CA | Reallocated | Jan 11, 2017 | dns@ |
Network & registry
Registry
Holder
- Organization
- Laurentian University of Sudbury
- Handle
- LARU-Z
- Range
- 142.
51. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Jun 6, 1991
- Legacy
- yes
- Reallocated to
- Vianet (VIS)
- Reallocated range
- 142.
51. 192. 0/ 18 - Reallocated
- Jan 11, 2017
Origin network
AS5690
CA
- Name
- Vianet Inc.
- Type
- Internet provider
- Registered
- Aug 24, 1995
- Domain
- vianet.ca
- Website
- www.vianet.ca
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2021
- Current origin since
- Aug 2022 · 4.2 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 142.
51. 192. 0/ 18 - Netname
- VIANET-LAUR-01
- Registrant
- Vianet
- Organization
- Vianet (VIS)
- Org address
- 128 Larch Street, Sudbury, ON, P3E-5J8
- Org country
- CA
- Type
- Reallocated
- Handle
- NET-142-51-192-0-1
- Parent
- NET-142-51-0-0-1
- Created
- Jan 11, 2017
- RIR
- ARIN
- Country
- CA
- Delegated
- Jun 6, 1991
- Status
- assigned
Report abuse
Abuse contact
- dns@
vianet. ca - Name
- Vianet Network Operations Centre
- Phone
- +1-705-222-9996
- Handle
- VH25-ORG-ARIN