Data as of Nov 12, 2026
154.37.178.0/23
Anonymizer · ISP proxyCogent Communications, LLC
IPv4 market
Path
2 · Leased from
not leased
Operators, sellers and brokers
Proxy providers
| Name | Parent | In 154.37.178.0/23 | /24s |
|---|---|---|---|
| Webshare | 512100% | 2 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
154.37.178.0/23
From the registry to its use
- Feb 5, 1992Registry recordCogent Communications, LLCDirect Allocation (legacy, pre-1997)154.37.0.0/16
- Sep 15, 2006– today
- Dec 23, 2021– today
- todayUsedWebshareProxy seller
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Anonymizer addresses | Leased from | Proxy exits | RPKI |
|---|---|---|---|---|---|---|
| 154.36.0.0/14 since Sep 2006 | AS174 | Internet provider | 3,3281.3%ISP proxy | IP broker Aventice (part) | 2,144 552 always on |
Network & registry
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
- 2,094
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2021
- Current origin since
- Dec 2021 · 4.9 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 154.
37. 0. 0/ 16 - Netname
- COGENT-154-37-16
- Registrant
- Cogent Communications, LLC
- Organization
- Cogent Communications, LLC (COGC)
- Org address
- 2450 N Street NW, Washington, DC, 20037
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-154-37-0-0-1
- Parent
- NET-154-0-0-0-0
- Created
- Feb 5, 1992
- 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