Data as of Nov 5, 2026
128.59.143.0/24
1 residential-proxy exit · 30 daysColumbia University
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
2
selling exits here
Oct 6, 2026 – Nov 4, 2026
Exits seen per day
9 observations
Proxy providers listing exits
- ColaProxy
- Thordata
Network & registry
Announced by
Covering announcement 128.59.0.0/16
- Prefix
- 128.59.0.0/16
- Announced by
- AS14 Columbia University
- Type
- Business
- Proxy exits
- 228
- RPKI
- No RPKI
- Netname
- CU-NET-128-59
- Registrant
- Columbia University
- RIR
- ARIN
Origin network
AS14
US
- Name
- Columbia University
- Type
- Education
- Domain
- columbia.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 128.59.0.0/16
128.59.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on 128.59.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS14 | RADB | CU-NET-128-59-0-0 | MAINT-AS14 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 128.
59. 0. 0/ 16 - Netname
- CU-NET-128-59
- Registrant
- Columbia University
- Organization
- Columbia University (COLUMB)
- Org address
- 612 W 115TH ST, NEW YORK, NY, 10025
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-128-59-0-0-1
- Parent
- NET-128-0-0-0-0
- Created
- Feb 5, 1985
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 5, 1985
- Status
- assigned
Report abuse
Abuse contact
- abuse@
columbia. edu - Name
- COLUMBIA UNIVERSITY ABUSE CONTACT
- Phone
- +1-212-854-1919
- Handle
- CUAC-ARIN