Data as of Nov 10, 2026
74.115.152.0/21
No anonymizer space · no proxy exits in 30 daysContour Networks
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 74.115.152.0/22 since Aug 2020 | AS31835 | Internet provider | Contour Networks | |
| 74.115.155.0/24 since Nov 2021 | AS31835 | Internet provider | Contour Networks | |
| 74.115.156.0/24 since Aug 2020 | AS31835 | Internet provider | Contour Networks | |
| 74.115.157.0/24 since Feb 2011 | AS31835 | Internet provider | Contour Networks | |
| 74.115.158.0/24 since Jan 2020 | AS31835 | Internet provider | Contour Networks | |
| 74.115.159.0/24 since Aug 2020 | AS31835 | Internet provider | Contour Networks |
Network & registry
Origin network
AS31835
US
- Name
- Contour Networks
- Type
- Internet provider
- Registered
- Jun 4, 2009
- Domain
- contournetworks.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 2009
- Current origin since
- Nov 2025 · 12 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 74.
115. 152. 0/ 21 - Netname
- CONTOUR-NETWORKS
- Registrant
- Contour Networks
- Organization
- Contour Networks (CSCT-1)
- Org address
- 61 Inverness Drive East, Englewood, CO, 80112
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-74-115-152-0-1
- Parent
- NET-74-0-0-0-0
- Created
- Jul 13, 2009
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 13, 2009
- Status
- assigned
Report abuse
Abuse contact
- gdeickman@
contournetworks. com - Name
- Deickman, Greg
- Phone
- +1-303-708-9228
- Handle
- GDE55-ARIN