Data as of Nov 10, 2026
74.117.137.0/24
No anonymizer space · no proxy exits in 30 daysHospital for Special Surgery
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 74.117.136.0/23 since Apr 2025 | AS3688 | Business | 2 | Hospital for Special Surgery |
Network & registry
Origin network
AS3688
US
- Name
- Hospital for Special Surgery
- Type
- Education
- Registered
- Sep 4, 2009
- Domain
- hss.edu
- Industry
- Hospitals and Medical Centers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2025
- Current origin since
- Apr 2025 · 1.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 74.117.137.0/24 | AS3688 | /24 | ARIN | RPKI valid |
| 74.117.136.0/23 | AS3688 | /23 | ARIN | Too specific |
Whois
Registration for this announcement
- Range
- 74.
117. 136. 0/ 22 - Netname
- HSS-1
- Registrant
- Hospital for Special Surgery
- Organization
- Hospital for Special Surgery (NEWYO-28)
- Org address
- 535 East 70th Street, New York, NY, 10021
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-74-117-136-0-1
- Parent
- NET-74-0-0-0-0
- Created
- Sep 4, 2009
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 4, 2009
- Status
- assigned
Report abuse
Abuse contact
- yoonk@
hss. edu - Name
- Network Operations Center
- Phone
- +1-212-606-1000
- Handle
- NOC11087-ARIN