Data as of Nov 12, 2026
172.87.56.0/30
No anonymizer space · no proxy exits in 30 daysSentinel Technologies, Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 172.87.56.0/23 since Jul 2015 | AS15294 | Business | Sentinel Technologies, Inc. |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 172.87.48.0/20 | 4,096 | STI-CS-NET | Sentinel Technologies, Inc. (SENTI-9) · US | Direct Allocation | May 22, 2015 | ptodd@ |
| └ 172.87.56.0/30 | 4 | 172-87-56-0-30 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 172.87.56.0/24
- Prefix
- 172.87.56.0/24
- Announced by
- AS15294 Sentinel Technologies, Inc.
- Type
- Business
- RPKI
- No RPKI
- Netname
- STI-CS-NET
- Registrant
- Sentinel Technologies, Inc.
- RIR
- ARIN
Origin network
AS15294
US
- Name
- Sentinel Technologies, Inc.
- Type
- Business
- Registered
- May 19, 2005
- Domain
- sentinel.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
172.87.56.0/24
Routing history
- Pattern
- Stable
- First seen
- Oct 2019
- Current origin since
- Oct 2019 · 7.1 yr
- Origin networks
- 1
IRR
Route objects on 172.87.56.0/24
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS15294 | RADB | Sentinel Technologies CloudSelect | MAINT-AS15294 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 172.
87. 48. 0/ 20 - Netname
- STI-CS-NET
- Registrant
- Sentinel Technologies, Inc.
- Organization
- Sentinel Technologies, Inc. (SENTI-9)
- Org address
- 2550 Warrenville Road, Downer's Grove, IL, 60515
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-172-87-48-0-1
- Parent
- NET-172-0-0-0-0
- Created
- May 22, 2015
- RIR
- ARIN
- Country
- US
- Delegated
- May 22, 2015
- Status
- assigned
Report abuse
Abuse contact
- ptodd@
sentinel. com - Name
- Todd, Paul
- Phone
- +1-630-769-4300
- Handle
- PTO6-ARIN