Data as of Nov 8, 2026
140.247.0.0/16
5 residential-proxy exits · 30 daysHarvard University
Residential-proxy exits
Proxy exits
5
<0.01% of its addresses · 30 days
Always-on exits
1
20% of its exits
Spread
3 of 256
/24s with at least one exit
Providers
31
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
2.5K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 140.247.12.0/24 | 1 | 1 | |
| 140.247.88.0/24 | 0 | 2 | |
| 140.247.97.0/24 | 0 | 2 |
Proxy providers listing exits
- BartProxies
- BirdProxies
- ByteProxies
- Byteful
- EnigmaProxy
- FastProxy
- FlexyProxies
- GSocks
- Geonix
- GonzoProxy
- HydraProxy
- IPOasis
- Infatica
- LemonBright
- LemonLabs
- LemonPrime
- MangoProxy
- NodeProxy
- NovaProxy
- Proxiware
- Proxy-Seller
- ProxyEmpire
- ProxyHat
- ProxyStyler
- Proxyma
- RainProxy
- Shifter
- ThunderProxy
- VantageProxies
- VitalData
- VitalExclusive
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 140.247.111.0/24 since Sep 18, 2026 | AS1742 | Business | Harvard University | |
| 140.247.152.0/24 since Sep 18, 2026 | AS1742 | Business | Harvard University | |
| 140.247.174.0/24 since Sep 18, 2026 | AS1742 | Business | Harvard University | |
| 140.247.236.0/24 since Sep 18, 2026 | AS1742 | Business | Harvard University |
Network & registry
Origin network
AS1742
US
- Name
- Harvard University
- Type
- Education
- Registered
- Feb 19, 1992
- Domain
- harvard.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Oct 2010 · 16 yr
- Origin networks
- 2
- Last change of origin
- Oct 2010
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 140.247.0.0/16 | AS1742 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 140.
247. 0. 0/ 16 - Netname
- HARVARD-UNIV
- Registrant
- Harvard University
- Organization
- Harvard University (HARVAR-Z)
- Org address
- HUIT Network Services, Cambridge, MA, 02139
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-140-247-0-0-1
- Parent
- NET-140-0-0-0-0
- Created
- Sep 18, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 18, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
harvard. edu - Name
- Abuse
- Phone
- +1-617-495-3574
- Handle
- ABUSE3331-ARIN