ASN AS11904 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11904?

AS11904 is listed under AcenTek.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS11904 AcenTek | IPGeolocation.io

ASN Lookup Tool

AcenTek acentek.net

US 35 Routes

AS Data

AS11904

AS11904 – AcenTek

AS Number	11904
AS Name	ATOM-MI-53-198
Organization	AcenTek (atm-53)
Country	US
Website	acentek.net
Number of IPv4 Routes	32
Number of IPv6 Routes	3
ASN type	ISP
Registry	ARIN
Date Allocated	1999-02-02

ASN Intelligence API for production workflows

Use ASN data for AS11904 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
209.25.252.0/22	AS11904	AcenTek	AcenTek	1024
209.25.248.0/21	AS11904	AcenTek	AcenTek	2048
198.167.246.0/23	AS11904	AcenTek	AcenTek	512
198.167.240.0/22	AS11904	AcenTek	AcenTek	1024
209.25.248.0/22	AS11904	AcenTek	AcenTek	1024
24.204.184.0/22	AS11904	AcenTek	AcenTek	1024
107.155.176.0/20	AS11904	AcenTek	AcenTek	4096
198.167.240.0/23	AS11904	AcenTek	AcenTek	512
209.25.244.0/22	AS11904	AcenTek	AcenTek	1024
24.204.188.0/22	AS11904	AcenTek	AcenTek	1024

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       11904
ASName:         ATOM-MI-53-198
ASHandle:       AS11904
RegDate:        1999-02-02
Updated:        2014-08-27
Ref:            https://rdap.arin.net/registry/autnum/11904


OrgName:        AcenTek
OrgId:          ATM-53
Address:        5351 North M-37
City:           Mesick
StateProv:      MI
PostalCode:     49668
Country:        US
RegDate:        2014-08-01
Updated:        2026-01-27
Ref:            https://rdap.arin.net/registry/entity/ATM-53


OrgTechHandle: HUIZE11-ARIN
OrgTechName:   Huizenga, Dean 
OrgTechPhone:  +1-616-895-9911 
OrgTechEmail:  dhuizenga@acentek.net
OrgTechRef:    https://rdap.arin.net/registry/entity/HUIZE11-ARIN

OrgNOCHandle: SYSTE106-ARIN
OrgNOCName:   Systems Administrator
OrgNOCPhone:  +1-616-895-9911 
OrgNOCEmail:  lwhipkey@acentek.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/SYSTE106-ARIN

OrgAbuseHandle: SYSTE106-ARIN
OrgAbuseName:   Systems Administrator
OrgAbusePhone:  +1-616-895-9911 
OrgAbuseEmail:  lwhipkey@acentek.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SYSTE106-ARIN

OrgRoutingHandle: WHITE2793-ARIN
OrgRoutingName:   White, Tony 
OrgRoutingPhone:  +1-507-896-6264 
OrgRoutingEmail:  towhite@acentek.net
OrgRoutingRef:    https://rdap.arin.net/registry/entity/WHITE2793-ARIN

OrgAbuseHandle: ABUSE7309-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-888-404-4940 
OrgAbuseEmail:  abuse@acegroup.cc
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE7309-ARIN

OrgRoutingHandle: TERRY277-ARIN
OrgRoutingName:   Terry, Gabriel 
OrgRoutingPhone:  +1-616-892-0107 
OrgRoutingEmail:  gterry@acentek.net
OrgRoutingRef:    https://rdap.arin.net/registry/entity/TERRY277-ARIN

OrgNOCHandle: NOC32893-ARIN
OrgNOCName:   NOC
OrgNOCPhone:  +1-888-404-4940 
OrgNOCEmail:  noc@acentek.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC32893-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "11904",
    "as_handle" : "AS11904",
    "as_name" : "ATOM-MI-53-198",
    "tech_contacts" : [ "HUIZE11-ARIN", "WHITE2793-ARIN", "TERRY277-ARIN" ],
    "abuse_contacts" : [ "SYSTE106-ARIN", "ABUSE7309-ARIN" ],
    "date_created" : "1999-02-02",
    "date_updated" : "2014-08-27",
    "source" : "https://rdap.arin.net/registry/autnum/11904"
  } ],
  "organization" : {
    "handle" : "ATM-53",
    "name" : "AcenTek",
    "address" : [ "5351 North M-37", "Mesick", "MI", "49668", "US" ],
    "street" : "North M-37",
    "city" : "Mesick",
    "state" : "MI",
    "zip_code" : "49668",
    "country" : [ "US" ],
    "date_created" : "2014-08-01",
    "date_updated" : "2026-01-27",
    "source" : "https://rdap.arin.net/registry/entity/ATM-53",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "HUIZE11-ARIN",
    "name" : "Huizenga, Dean",
    "email" : [ "dhuizenga@acentek.net" ],
    "phone" : [ "+1-616-895-9911" ],
    "source" : "https://rdap.arin.net/registry/entity/HUIZE11-ARIN"
  }, {
    "handle" : "WHITE2793-ARIN",
    "name" : "White, Tony",
    "email" : [ "towhite@acentek.net" ],
    "phone" : [ "+1-507-896-6264" ],
    "source" : "https://rdap.arin.net/registry/entity/WHITE2793-ARIN"
  }, {
    "handle" : "TERRY277-ARIN",
    "name" : "Terry, Gabriel",
    "email" : [ "gterry@acentek.net" ],
    "phone" : [ "+1-616-892-0107" ],
    "source" : "https://rdap.arin.net/registry/entity/TERRY277-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "SYSTE106-ARIN",
    "name" : "Systems Administrator",
    "email" : [ "lwhipkey@acentek.net" ],
    "phone" : [ "+1-616-895-9911" ],
    "source" : "https://rdap.arin.net/registry/entity/SYSTE106-ARIN"
  }, {
    "handle" : "ABUSE7309-ARIN",
    "name" : "Abuse",
    "email" : [ "abuse@acegroup.cc" ],
    "phone" : [ "+1-888-404-4940" ],
    "source" : "https://rdap.arin.net/registry/entity/ABUSE7309-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS199524	G-Core Labs S.A.	LU
AS20205	Amplex Electric, Inc.	US
AS40599	Gentex Corporation	US
AS397300	Crystal Enterprises, Inc	US
AS54119	WhiteSky Communications, LLC.	US
AS6939	Hurricane Electric LLC	US
AS13737	Interconnecx, LLC	US
AS32002	RackGenius	US
AS174	Cogent Communications, LLC	US

Upstreams

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS174	Cogent Communications, LLC	US

Downstreams

AS Number	Description	Country
AS40599	Gentex Corporation	US
AS397300	Crystal Enterprises, Inc	US
AS54119	WhiteSky Communications, LLC.	US

Contacts

Email Contacts

towhite@acentek.net gterry@acentek.net lwhipkey@acentek.net dhuizenga@acentek.net

Abuse Contacts

abuse@acegroup.cc