Data as of Nov 7, 2026
204.170.35.0/24
No anonymizer space · no proxy exits in 30 daysCogent Communications, LLC · space held by NTT America, Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.170.0.0/15 since Aug 2016 | AS2914 | Internet provider | 2 | NTT America, Inc. |
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
- 1,658
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Feb 2018 · 8.8 yr
- Origin networks
- 2
- Last change of origin
- Feb 2018
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.170.35.0/24 | AS174 | /24 | ARIN | RPKI valid |
| 204.170.0.0/15 | AS2914 | /15 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 204.
170. 0. 0/ 15 - Netname
- NTTA-204-170
- Registrant
- NTT America, Inc.
- Organization
- NTT America, Inc. (NTTAM-1)
- Org address
- 15809 Bear Creek Pkwy, Redmond, WA, 98052
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-204-170-0-0-1
- Parent
- NET-204-0-0-0-0
- Created
- Oct 13, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 13, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
ntt. net - Name
- NTT America Abuse Contact
- Phone
- +1-877-688-6625
- Handle
- NAAC-ARIN