Data as of Nov 7, 2026
142.231.20.0/24
No anonymizer space · no proxy exits in 30 daysUniversity of British Columbia · space held by BCNET
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 142.231.0.0/16 since May 2005 | AS271 | Business | 145 | BCNET |
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 |
|---|---|---|---|---|---|---|
| 142.231.0.0/16 | 65,536 | BCNET3 | BCNET (BC-Z) · CA | Direct Allocation | Feb 9, 1993 | bcnet-arin-abuse@ |
| └ 142.231.20.0/24 | 256 | UBC-142-231-20 | University of British Columbia (UBC-3) · CA | Reassigned | Mar 13, 2023 | security@ |
Network & registry
Registry
Holder
- Organization
- BCNET
- Handle
- BC-Z
- Range
- 142.
231. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Feb 9, 1993
- Legacy
- yes
Origin network
AS393249
CA
- Name
- University of British Columbia
- Type
- Education
- Registered
- Dec 14, 2010
- Domain
- ubc.ca
- Industry
- Education and Research
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- Nov 2023 · 3.0 yr
- Origin networks
- 2
- Last change of origin
- Nov 2023
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 142.
231. 20. 0/ 24 - Netname
- UBC-142-231-20
- Registrant
- University of British Columbia
- Organization
- University of British Columbia (UBC-3)
- Org address
- 6356 Agricultural Road, Vancouver, BC, V6T-1Z2
- Org country
- CA
- Type
- Reassigned
- Handle
- NET-142-231-20-0-1
- Parent
- NET-142-231-0-0-1
- Created
- Mar 13, 2023
- RIR
- ARIN
- Country
- CA
- Delegated
- Feb 9, 1993
- Status
- assigned
Report abuse
Abuse contact
- security@
ubc. ca - Name
- Abuse
- Phone
- +1-604-822-2008
- Handle
- ABUSE3547-ARIN