Data as of Nov 13, 2026
154.60.90.0/23
No anonymizer space · no proxy exits in 30 daysCogent Communications, LLC
Announcement
this exact prefix
No RPKI
Announced by
Type
Residential
Recent change
New origin Sep 2026
from AS199452 MS3 Networks Ltd
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 154.48.0.0/12 since May 2005 | AS174 | Internet provider | 12,711 2,332 always on |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 154.60.90.0/24 since Sep 2026 | AS174 | Residential | Cogent Communications, LLC | |
| 154.60.91.0/24 since Sep 2026 | AS174 | Residential | Cogent Communications, LLC |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 154.60.0.0/16 | 65,536 | COGENT-154-60-16 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Feb 5, 1992 | abuse@ |
| └ 154.60.90.0/23 | 512 | NET-154-60-90-0-1 | MS3 Networks Limited (C09359302) · GB | Reassigned | Apr 6, 2023 | abuse@ via COGENT-154-60-16 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 154.
60. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Feb 5, 1992
- Legacy
- yes
Origin network
AS174
US
- Name
- Cogent Communications, LLC
- Type
- Internet provider
- Registered
- May 16, 1996
- Domain
- cogentco.com
- Website
- www.cogentco.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 2,203
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Apr 2023
- Current origin since
- Sep 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Sep 2026
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 154.
60. 90. 0/ 23 - Netname
- NET-154-60-90-0-1
- Registrant
- MS3 Networks Limited
- Organization
- MS3 Networks Limited (C09359302)
- Type
- Reassigned
- Handle
- NET-154-60-90-0-1
- Parent
- NET-154-60-0-0-1
- Created
- Apr 6, 2023
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 5, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cogentco. com - Name
- Cogent Abuse
- Phone
- +1-877-875-4311
- Handle
- COGEN-ARIN