Data as of Nov 7, 2026
192.156.240.0/24
No anonymizer space · no proxy exits in 30 daysAvantguard Monitoring Centers · space held by Becklar Holdings, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Jun 2026
from AS7029 Windstream Communications LLC
Network & registry
Origin network
AS393630
US
- Name
- Avantguard Monitoring Centers
- Type
- Business
- Registered
- Sep 17, 2014
- Domain
- agmonitoring.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Nov 2015
- Current origin since
- Jun 2026 · 5 mo
- Origin networks
- 3
- Last change of origin
- Jun 2026
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 192.156.240.0/24 | AS3356 | /24 | ARIN | Another network |
| 192.156.240.0/24 | AS7029 | /24 | ARIN | Another network |
| 192.156.240.0/24 | AS15305 | /24 | ARIN | Another network |
| 192.156.240.0/24 | AS63303 | /24 | ARIN | Another network |
| 192.156.240.0/24 | AS63306 | /24 | ARIN | Another network |
| 192.156.240.0/24 | AS393630 | /24 | ARIN | RPKI valid |
| 192.156.240.0/24 | AS394042 | /24 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS3356 not the origin | ARIN | Becklar Holdings, LLC | MNT-BL-1095 | Sep 16, 2026 |
| AS7029 not the origin | ARIN | Becklar Holdings, LLC | MNT-BL-1095 | Jun 15, 2026 |
| AS15305 not the origin | ARIN | Becklar Holdings, LLC | MNT-BL-1095 | Sep 16, 2026 |
| AS63303 not the origin | ARIN | Becklar Holdings, LLC | MNT-BL-1095 | Jun 15, 2026 |
| AS63306 not the origin | ARIN | Becklar Holdings, LLC | MNT-BL-1095 | Jun 15, 2026 |
| AS393630 | ARIN | Becklar/Avantguard/Dynamark | MNT-BL-1095 | Jun 15, 2026 |
| AS394042 not the origin | RADB | Proxy fbo Dynamark Monitoring (AS394042) | MAINT-AS7029 | Nov 13, 2023 |
| AS394042 not the origin | NTTCOM | Dynamark Monitoring, Inc | MAINT-SHENTEL | May 14, 2019 |
| AS394042 not the origin | ARIN | Becklar Holdings, LLC | MNT-BL-1095 | Jun 15, 2026 |
Whois
Registration for this announcement
- Range
- 192.
156. 240. 0/ 24 - Netname
- DYNAMARK-MONITORING
- Registrant
- Becklar Holdings, LLC
- Organization
- Becklar Holdings, LLC (BL-1095)
- Org address
- 4699 Harrison Blvd, Ogden, UT, 84403
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-192-156-240-0-1
- Parent
- NET-192-0-0-0-0
- Created
- Jun 29, 2015
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 29, 2015
- Status
- assigned
Report abuse
Abuse contact
- rdyer@
becklar. com - Name
- Network and Communications
- Phone
- +1-801-781-6153
- Handle
- NETWO9985-ARIN