Data as of Nov 8, 2026
209.112.173.72/29
No anonymizer space · no proxy exits in 30 daysAlaska Communications Systems Group, Inc.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 209. | 24,576 | AKSK-209-112-128-0-18 | Alaska Communications Systems Group, Inc. (ACSG-1) · US | Direct Allocation | Jul 29, 1997 | — |
| └ 209.112.173.72/29 | 8 | ALASKA-37A | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 209.112.128.0/18
- Prefix
- 209.112.128.0/18
- Announced by
- AS7782 Alaska Communications Systems Group, Inc.
- Type
- Residential
- Proxy exits
- 42
- RPKI
- RPKI valid
- Netname
- AKSK-209-112-128-0-18
- Registrant
- Alaska Communications Systems Group, Inc.
- RIR
- ARIN
Origin network
AS7782
US
- Name
- Alaska Communications Systems Group, Inc.
- Type
- Internet provider
- Registered
- Jan 10, 1997
- Domain
- alsk.com
- Website
- www.acsalaska.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 209.112.128.0/18
209.112.128.0/18
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 209.112.128.0/18 | AS7782 | /18 | ARIN | RPKI valid |
IRR
Route objects on 209.112.128.0/18
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7782 | RADB | NETBLK-ALASKA-BLK | MAINT-ACS | May 7, 2026 |
Whois
Registration for this announcement
- Range
- 209.
112. 128. 0 - 209. 112. 223. 255 - Netname
- AKSK-209-112-128-0-18
- Registrant
- Alaska Communications Systems Group, Inc.
- Organization
- Alaska Communications Systems Group, Inc. (ACSG-1)
- Org address
- c/o ACS Internet, Inc., Anchorage, AK, 99503
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-209-112-128-0-1
- Parent
- NET-209-0-0-0-0
- Created
- Jul 29, 1997
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 29, 1997
- Status
- assigned
Report abuse
Abuse contact
- abuse@
acsalaska. net - Name
- ACS Internet - Abuse
- Phone
- +1-907-273-6898
- Handle
- AIA4-ARIN