Data as of Nov 6, 2026
72.35.175.0/24
No anonymizer space · no proxy exits in 30 daysGrand River Mutual Telephone Corporation
Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
81% of it
Recent change
New origin Jul 2026
from AS395582 Grand River Mutual Telephone Corporation, after 8.2 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 72.35.160.0/19 since May 2018 | AS395582 | Residential | 60 16 always on | Grand River Mutual Telephone Corporation |
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 |
|---|---|---|---|---|---|---|
| 72.35.160.0/19 | 8,192 | GRMNET-BLK-3 | Grand River Mutual Telephone Corporation (GRMT) · US | Direct Allocation | Apr 29, 2005 | — |
| └ 72.35.175.56/29 | 8 | GRMT-SHIVVERS | unknown | — | — | — |
| └ 72.35.175.96/29 | 8 | GRMT-HALL | unknown | — | — | — |
| └ 72.35.175.224/27 | 32 | GRMT-BTC | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Residential | 208 | 81% | 3 | |
| Business | 48 | 19% | 3 |
Network & registry
Origin network
AS395582
US
- Name
- Grand River Mutual Telephone Corporation
- Type
- Internet provider
- Registered
- Oct 12, 2016
- Domain
- grm.net
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jan 2018
- Current origin since
- Jul 2026 · 4 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 72.35.160.0/19 | AS395582 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 72.
35. 160. 0/ 19 - Netname
- GRMNET-BLK-3
- Registrant
- Grand River Mutual Telephone Corporation
- Organization
- Grand River Mutual Telephone Corporation (GRMT)
- Org address
- 1001 Kentucky Street, Princeton, MO, 64673
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-72-35-160-0-1
- Parent
- NET-72-0-0-0-0
- Created
- Apr 29, 2005
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 29, 2005
- Status
- assigned
Report abuse
Abuse contact
- jcollings@
corp. grm. net - Name
- Collings, Jason
- Phone
- +1-660-748-2230
- Handle
- COLLI1060-ARIN