ASN AS6456 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS6456?

AS6456 is listed under Altopia Corporation.

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.

AS6456 Altopia Corporation | IPGeolocation.io

ASN Lookup Tool

Altopia Corporation alt.net

US 2 Routes

AS Data

AS6456

AS6456 – Altopia Corporation

AS Number	6456
AS Name	ALTOPIA
Organization	Altopia Corporation (altopi-1)
Country	US
Website	alt.net
Number of IPv4 Routes	1
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1997-03-28

ASN Intelligence API for production workflows

Use ASN data for AS6456 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
208.90.168.0/22	AS6456	Altopia Corporation	Altopia Corporation	1024
2620:0:cf0::/48	AS6456	Altopia Corporation	Altopia Corporation	~1×10²⁴

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:       6456
ASName:         ALTOPIA
ASHandle:       AS6456
RegDate:        1997-03-28
Updated:        2001-02-01
Ref:            https://rdap.arin.net/registry/autnum/6456


OrgName:        Altopia Corporation
OrgId:          ALTOPI-1
Address:        1700 7th Ave Ste 116 PMB #300
City:           Seattle
StateProv:      WA
PostalCode:     98101-1323
Country:        US
RegDate:        1997-03-28
Updated:        2022-03-04
Ref:            https://rdap.arin.net/registry/entity/ALTOPI-1


OrgAbuseHandle: AH99-ORG-ARIN
OrgAbuseName:   Altopia Corporation
OrgAbusePhone:  +1-206-367-4320 
OrgAbuseEmail:  hostmaster@alt.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AH99-ORG-ARIN

OrgTechHandle: AH99-ORG-ARIN
OrgTechName:   Altopia Corporation
OrgTechPhone:  +1-206-367-4320 
OrgTechEmail:  hostmaster@alt.net
OrgTechRef:    https://rdap.arin.net/registry/entity/AH99-ORG-ARIN

RTechHandle: AH99-ORG-ARIN
RTechName:   Altopia Corporation
RTechPhone:  +1-206-367-4320 
RTechEmail:  hostmaster@alt.net
RTechRef:    https://rdap.arin.net/registry/entity/AH99-ORG-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" : "6456",
    "as_handle" : "AS6456",
    "as_name" : "ALTOPIA",
    "tech_contacts" : [ "AH99-ORG-ARIN", "AH99-ORG-ARIN" ],
    "abuse_contacts" : [ "AH99-ORG-ARIN" ],
    "date_created" : "1997-03-28",
    "date_updated" : "2001-02-01",
    "source" : "https://rdap.arin.net/registry/autnum/6456"
  } ],
  "organization" : {
    "handle" : "ALTOPI-1",
    "name" : "Altopia Corporation",
    "address" : [ "1700 7th Ave Ste 116 PMB", "Seattle", "WA", "98101-1323", "US" ],
    "street" : "7th Ave",
    "city" : "Seattle",
    "state" : "WA",
    "zip_code" : "98101-1323",
    "country" : [ "US" ],
    "date_created" : "1997-03-28",
    "date_updated" : "2022-03-04",
    "source" : "https://rdap.arin.net/registry/entity/ALTOPI-1",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "AH99-ORG-ARIN",
    "name" : "Altopia Corporation",
    "email" : [ "hostmaster@alt.net" ],
    "phone" : [ "+1-206-367-4320" ],
    "source" : "https://rdap.arin.net/registry/entity/AH99-ORG-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AH99-ORG-ARIN",
    "name" : "Altopia Corporation",
    "email" : [ "hostmaster@alt.net" ],
    "phone" : [ "+1-206-367-4320" ],
    "source" : "https://rdap.arin.net/registry/entity/AH99-ORG-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS58511	Anycast Global Backbone	AU
AS24482	SG.GS	SG
AS34927	iFog GmbH	CH
AS401703	Ordinal Advisors LLC	US
AS6939	Hurricane Electric LLC	US
AS20473	The Constant Company, LLC	US
AS11404	Wave Broadband	US
AS4775	Globe Telecoms	PH
AS3303	Swisscom (Schweiz) AG	CH
AS3130	RGnet OU	EE
AS852	TELUS Communications Inc.	CA
AS205329	Kai-Jung Chen	TW
AS394256	Tech Futures Interactive Inc.	CA
AS36236	NetActuate, Inc	US
AS18106	Viewqwest Pte Ltd	SG
AS53597	Hoyos Consulting LLC	US
AS16276	OVH SAS	FR
AS3303	Swisscom Schweiz AG	CH
AS9002	RETN Limited	GB
AS11164	Internet2	US
AS7575	Australian Academic and Research Network (AARNet)	AU
AS4474	TCT West, Inc.	US
AS3701	University of Oregon	US
AS35280	F5 Networks SARL	FR
AS7575	Australian Academic and Research Network	AU
AS20119	Arrow Group Inc.	CA
AS1828	Unitas Global	US
AS13737	Interconnecx, LLC	US
AS53828	NETWORK INNOVATIONS, LLC	US
AS137409	GSL Networks Pty LTD	AU
AS4181	TDS TELECOM	US
AS49544	i3D.net B.V	NL

Upstreams

AS Number	Description	Country
AS7575	Australian Academic and Research Network	AU
AS394256	Tech Futures Interactive Inc.	CA
AS3303	Swisscom Schweiz AG	CH
AS6939	Hurricane Electric LLC	US
AS11404	Wave Broadband	US
AS137409	GSL Networks Pty LTD	AU