What is ASN AS400619?

ASN AS400619 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS400619?

AS400619 is listed under AROSSCLOUD INC..

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.

AS400619 AROSSCLOUD INC. | IPGeolocation.io

ASN Lookup Tool

AROSSCLOUD INC. arosscloud.com

US 251 Routes

AS Data

AS400619

AS400619 – AROSSCLOUD INC.

AS Number	400619
AS Name	AROSS-AS
Organization	AROSSCLOUD INC. (aross-1)
Country	US
Website	arosscloud.com
Number of IPv4 Routes	251
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2022-04-11

ASN Intelligence API for production workflows

Use ASN data for AS400619 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
154.89.154.0/24	AS400619	AROSSCLOUD INC.	Fastmos Co Limited	256
38.12.16.0/21	AS400619	AROSSCLOUD INC.	PEG Tech Inc.	2048
154.91.177.0/24	AS400619	AROSSCLOUD INC.	Arosscloud INC	256
156.241.184.0/22	AS400619	AROSSCLOUD INC.	Fastmos Co Limited	1024
203.91.74.0/24	AS400619	AROSSCLOUD INC.	LANLIAN INTERNATIONAL HOLDING GROUP LIMITED	256
154.193.196.0/22	AS400619	AROSSCLOUD INC.	Fastmos Co Limited	1024
38.55.150.0/24	AS400619	AROSSCLOUD INC.	PEG Tech Inc.	256
154.204.160.0/21	AS400619	AROSSCLOUD INC.	Fastmos Co Limited	2048
154.193.218.0/24	AS400619	AROSSCLOUD INC.	Fastmos Co Limited	256
103.179.242.0/24	AS400619	AROSSCLOUD INC.	Tisson Ritar Technology Limited	256

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:       400619
ASName:         AROSS-AS
ASHandle:       AS400619
RegDate:        2022-04-11
Updated:        2022-04-11
Ref:            https://rdap.arin.net/registry/autnum/400619


OrgName:        AROSSCLOUD INC.
OrgId:          AROSS-1
Address:        840 S FRANKLIN ST
City:           DENVER
StateProv:      CO
PostalCode:     80209
Country:        US
RegDate:        2022-02-26
Updated:        2022-03-28
Ref:            https://rdap.arin.net/registry/entity/AROSS-1


OrgTechHandle: MARKC4-ARIN
OrgTechName:   Mark, Chow 
OrgTechPhone:  +1-657-206-5036 
OrgTechEmail:  mark.chow@arosscloud.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MARKC4-ARIN

OrgAbuseHandle: MARKC4-ARIN
OrgAbuseName:   Mark, Chow 
OrgAbusePhone:  +1-657-206-5036 
OrgAbuseEmail:  mark.chow@arosscloud.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MARKC4-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" : "400619",
    "as_handle" : "AS400619",
    "as_name" : "AROSS-AS",
    "tech_contacts" : [ "MARKC4-ARIN" ],
    "abuse_contacts" : [ "MARKC4-ARIN" ],
    "date_created" : "2022-04-11",
    "date_updated" : "2022-04-11",
    "source" : "https://rdap.arin.net/registry/autnum/400619"
  } ],
  "organization" : {
    "handle" : "AROSS-1",
    "name" : "AROSSCLOUD INC.",
    "address" : [ "840 S FRANKLIN ST", "DENVER", "CO", "80209", "US" ],
    "street" : "S Franklin St",
    "city" : "Denver",
    "state" : "CO",
    "zip_code" : "80209",
    "country" : [ "US" ],
    "date_created" : "2022-02-26",
    "date_updated" : "2022-03-28",
    "source" : "https://rdap.arin.net/registry/entity/AROSS-1",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "MARKC4-ARIN",
    "name" : "Mark, Chow",
    "email" : [ "mark.chow@arosscloud.com" ],
    "phone" : [ "+1-657-206-5036" ],
    "source" : "https://rdap.arin.net/registry/entity/MARKC4-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "MARKC4-ARIN",
    "name" : "Mark, Chow",
    "email" : [ "mark.chow@arosscloud.com" ],
    "phone" : [ "+1-657-206-5036" ],
    "source" : "https://rdap.arin.net/registry/entity/MARKC4-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS10099	China Unicom Hong Kong Operations Limited	HK
AS3491	PCCW Global	HK
AS1239	Cogent Communications, LLC	US
AS54600	PEG TECH INC	US
AS8796	FASTNET DATA INC	US
AS21859	Zenlayer Inc	US
AS2914	NTT America, Inc.	US
AS174	Cogent Communications, LLC	US
AS10099	China Unicom Global	HK
AS3491	PCCW Global HK Limited	HK

Upstreams

AS Number	Description	Country
AS10099	China Unicom Hong Kong Operations Limited	HK
AS54600	PEG TECH INC	US
AS3491	PCCW Global HK Limited	HK
AS8796	FASTNET DATA INC	US
AS23764	China Telecom Global Limited	HK
AS3223	Voxility LLP	GB
AS21859	Zenlayer Inc	US
AS2914	NTT America, Inc.	US
AS174	Cogent Communications, LLC	US

Downstreams

AS Number	Description	Country
AS329611	Serverpulse Africa Ltd	NG

Legacy Routes

183.90.187.0/24 43.224.225.0/24 103.215.78.0/24 43.224.227.0/24 154.211.5.0/24 103.112.98.0/24 103.112.99.0/24 154.211.4.0/24 103.156.25.0/24 183.90.186.0/24 154.211.7.0/24 103.112.96.0/24 103.215.77.0/24 103.112.97.0/24 154.211.6.0/24