Data as of Nov 4, 2026
199.187.31.0/24
No anonymizer space · no proxy exits in 30 daysMontana Opticom, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
Risk
0 / 100 · Low
Recent change
New origin Jul 2026
from AS22485 Montana Opticom, LLC, after 4.6 years unannounced
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 |
|---|---|---|---|---|---|---|
| 199.187.28.0/22 | 1,024 | MONTANA-OPTICOM-199-187-28 | Montana Opticom, LLC (MONTA-16) · US | Direct Allocation | Apr 8, 2009 | support@ |
| └ 199.187.28.0/22 | 1,024 | BILLINGS | Montana Opticom, LLC (MONTA-17) · US | Reallocated | Mar 23, 2015 | support@ |
Network & registry
Origin network
AS22485
US
- Name
- Montana Opticom, LLC
- Type
- Internet provider
- Registered
- Oct 3, 2001
- Domain
- mt-opticom.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
- Jan 2015
- Current origin since
- Jul 2026 · 4 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 199.187.28.0/22 | AS22485 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 199.
187. 28. 0/ 22 - Netname
- BILLINGS
- Registrant
- Montana Opticom, LLC
- Organization
- Montana Opticom, LLC (MONTA-17)
- Org address
- 144 Quail Run Road, Bozeman, MT, 59718
- Org country
- US
- Type
- Reallocated
- Handle
- NET-199-187-28-0-2
- Parent
- NET-199-187-28-0-1
- Created
- Mar 23, 2015
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 8, 2009
- Status
- assigned
Report abuse
Abuse contact
- support@
mt-opticom. com - Name
- DOLAN, JIM
- Phone
- +1-406-999-5000
- Handle
- JDO119-ARIN