Autonomous system
AS36394 ASN-GRID4-GATEWAYS
Residential ARIN Cable/DSL/ISP
Summary
Grid4 Communications
business isp voice it
The AS handle ASN-GRID4-GATEWAYS is held by Grid4 Communications, Inc.
What it's used for
- The address space carries business and carrier-grade IP communications, with netnames like
GRID4-COMMandLVLT-GRID4-8-2-144indicating legacy Level 3 allocations and general corporate usage. - The network announces 20,736 IPv4 addresses across 13 prefixes and maintains 6 observed neighbours, a ratio consistent with a facilities-based access provider serving business customers rather than a large transit backbone.
Notable
- All registrants in the RDAP data agree with the announcer, consistently listing Grid4 Communications, Inc.
- Grid4 Communications is a privately held, facilities-based IP voice and Internet communications service provider headquartered in Troy, Michigan, offering services such as VoIP, SIP trunking, and managed IT.
- The inventory consists of a mix of /21 and /22 blocks, including a single /24, with no IPv6 prefixes currently announced.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Detroit Internet Exchange | Detroit, United States | 209.124.52.49 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 13 prefixes · 20.74K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 13 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS36394- Registry name
- ASN-GRID4-GATEWAYS
- Registrant
- Grid4 Communications, Inc
- Abuse contact
- bphelps@grid4.com
- Registered
- 2005-12-20
- Last changed
- 2012-02-24
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Grid4 Communications
- Network type
- Cable/DSL/ISP
- Scope
- North America
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- Present at
- 1 exchanges
- Facilities
- 2 facilities
- Website
- http://www.grid4.com
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 13 with no ROA
- ROAs
- 0 authorising AS36394
- ASPA
- no ASPA record
- IRR
- 69% registered · 9 of 13 announcements
- Route objects
- 11 naming AS36394
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,775 prefixes, as published 2026-10-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere