Data as of Nov 4, 2026
100.42.4.0/24
No anonymizer space · no proxy exits in 30 daysIsoTropic Networks, 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 |
|---|---|---|---|---|---|---|
| 100.42.0.0/20 | 4,096 | ISOTROPIC-NETWORKS | IsoTropic Networks, Inc. (ISOTR-1) · US | Direct Allocation | Nov 16, 2011 | noc@ |
| └ 100.42.4.0/24 | 256 | ISOTROPIC-NETWORKS | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 100.42.0.0/20
- Prefix
- 100.42.0.0/20
- Announced by
- AS36426 IsoTropic Networks, Inc.
- Type
- Internet provider
- RPKI
- No RPKI
- Netname
- ISOTROPIC-NETWORKS
- Registrant
- IsoTropic Networks, Inc.
- RIR
- ARIN
Origin network
AS36426
US
- Name
- IsoTropic Networks, Inc.
- Type
- Internet provider
- Registered
- May 13, 2010
- Domain
- isosat.net
- Industry
- Satellite Communication
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 100.42.0.0/20
100.42.0.0/20
Routing history
- Pattern
- Stable
- First seen
- Dec 2011
- Current origin since
- Nov 2023 · 3.0 yr
- Origin networks
- 1
IRR
Route objects on 100.42.0.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS36426 | RADB | RR-RC-IsoTropic Networks, Inc.-Milwaukee | MAINT-RR | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 100.
42. 0. 0/ 20 - Netname
- ISOTROPIC-NETWORKS
- Registrant
- IsoTropic Networks, Inc.
- Organization
- IsoTropic Networks, Inc. (ISOTR-1)
- Org address
- W2835 Krueger Road, Lake Geneva, WI, 53147
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-100-42-0-0-1
- Parent
- NET-100-0-0-0-0
- Created
- Nov 16, 2011
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 16, 2011
- Status
- assigned
Report abuse
Abuse contact
- noc@
isotropic. network - Name
- NOC Support
- Phone
- +1-262-248-9600
- Handle
- NOCSU26-ARIN