Data as of Nov 7, 2026
192.231.146.0/23
6 residential-proxy exits · 30 daysNational Institutes of Health
Residential-proxy exits
Proxy exits
6
1.2% of its addresses · 30 days
Spread
1 of 2
/24s with at least one exit
Providers
38
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
1.9K observations
Proxy providers listing exits
- AnyIP
- BirdProxies
- BottingTools
- Bright Data
- ByteProxies
- Byteful
- CliProxy
- EnigmaProxy
- FastProxy
- FlexyProxies
- FloppyData
- GSocks
- Geonix
- Geonode
- GloryCloud
- GonzoProxy
- HideProxy
- Infatica
- InfiniteProxies
- LemonBright
- LudaxProxy
- MangoProxy
- NodeProxy
- NovaProxy
- Novada
- ProxiesVision
- Proxiware
- Proxy-Seller
- ProxyEmpire
- ProxyGeo
- ProxyWing
- Proxyma
- RainProxy
- Shifter
- Thordata
- ThunderProxy
- VantageProxies
- VitalExclusive
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 192.231.146.0/24 since Nov 2020 | AS3527 | Business | 6 | National Institutes of Health | |
| 192.231.147.0/24 since Nov 2020 | AS3527 | Business | National Institutes of Health |
Network & registry
Origin network
AS3527
US
- Name
- National Institutes of Health
- Type
- Business
- Registered
- Apr 7, 1994
- Domain
- nih.gov
- Industry
- Government and Regulatory Agencies, Administrations, Departments, and Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2010
- Current origin since
- May 2020 · 6.5 yr
- Origin networks
- 2
- Last change of origin
- May 2020
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 192.231.146.0/23 | AS3527 | /29 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 192.
231. 145. 0 - 192. 231. 147. 255 - Netname
- NIHNET-4
- Registrant
- National Institutes of Health
- Organization
- National Institutes of Health (NIH-Z)
- Org address
- 9000 Rockville Pike, Bethesda, MD, 20892-4805
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-192-231-145-0-1
- Parent
- NET-192-0-0-0-0
- Created
- Oct 9, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 9, 1992
- Status
- assigned
Report abuse
Abuse contact
- citnsarin@
mail. nih. gov - Name
- NIHtechs
- Phone
- +1-301-402-3141
- Handle
- NIHTE-ARIN