ASN AS21777 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS21777?

AS21777 is listed under Massive Networks, 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?

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AS21777 Massive Networks, Inc.

ASN Lookup Tool

Massive Networks, Inc. massivenetworks.com

US 70 Routes

AS Data

AS21777

AS21777 – Massive Networks, Inc.

AS Number	21777
AS Name	MASSIVE-NETWORKS-21777
Organization	Massive Networks, Inc. (mn-407)
Country	US
Website	massivenetworks.com
Number of IPv4 Routes	63
Number of IPv6 Routes	7
ASN type	ISP
Registry	ARIN
Date Allocated	2011-01-21

ASN Intelligence API for production workflows

Use ASN data for AS21777 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
207.174.8.0/24	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	256
2602:ffc6:200::/40	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	~309×10²⁴
72.18.208.0/24	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	256
2602:ffc6:600::/40	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	~309×10²⁴
207.174.201.0/24	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	256
72.18.217.0/24	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	256
207.174.140.0/22	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	1024
206.168.0.0/24	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	256
207.174.114.0/24	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	256
206.168.96.0/24	AS21777	Massive Networks, Inc.	Massive Networks, Inc.	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:       21777
ASName:         MASSIVE-NETWORKS-21777
ASHandle:       AS21777
RegDate:        2011-01-21
Updated:        2026-02-25
Ref:            https://rdap.arin.net/registry/autnum/21777


OrgName:        Massive Networks, Inc.
OrgId:          MN-407
Address:        382 S. Arthur Ave.
Address:        Suite 120
City:           Louisville
StateProv:      CO
PostalCode:     80027
Country:        US
RegDate:        2026-02-11
Updated:        2026-03-11
Ref:            https://rdap.arin.net/registry/entity/MN-407


OrgAbuseHandle: ABUSE7475-ARIN
OrgAbuseName:   Abuse Department
OrgAbusePhone:  +1-303-800-1300 
OrgAbuseEmail:  abuse@massivenetworks.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE7475-ARIN

OrgTechHandle: LEWIN9-ARIN
OrgTechName:   Lewinski, Mike 
OrgTechPhone:  +1-303-629-2860 
OrgTechEmail:  mlewinski@massivenetworks.com
OrgTechRef:    https://rdap.arin.net/registry/entity/LEWIN9-ARIN

OrgNOCHandle: NOC33251-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-303-800-1300 
OrgNOCEmail:  noc@massivenetworks.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC33251-ARIN

OrgTechHandle: COBER-ARIN
OrgTechName:   Coberly, James 
OrgTechPhone:  +1-303-800-1300 
OrgTechEmail:  james@xmc.com
OrgTechRef:    https://rdap.arin.net/registry/entity/COBER-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" : "21777",
    "as_handle" : "AS21777",
    "as_name" : "MASSIVE-NETWORKS-21777",
    "tech_contacts" : [ "LEWIN9-ARIN", "COBER-ARIN" ],
    "abuse_contacts" : [ "ABUSE7475-ARIN" ],
    "date_created" : "2011-01-21",
    "date_updated" : "2026-02-25",
    "source" : "https://rdap.arin.net/registry/autnum/21777"
  } ],
  "organization" : {
    "handle" : "MN-407",
    "name" : "Massive Networks, Inc.",
    "address" : [ "382 S. Arthur Ave.", "Suite 120", "Louisville", "CO", "80027", "US" ],
    "street" : "S. Arthur Ave.",
    "city" : "Louisville",
    "state" : "CO",
    "zip_code" : "80027",
    "country" : [ "US" ],
    "date_created" : "2026-02-11",
    "date_updated" : "2026-03-11",
    "source" : "https://rdap.arin.net/registry/entity/MN-407",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "LEWIN9-ARIN",
    "name" : "Lewinski, Mike",
    "email" : [ "mlewinski@massivenetworks.com" ],
    "phone" : [ "+1-303-629-2860" ],
    "source" : "https://rdap.arin.net/registry/entity/LEWIN9-ARIN"
  }, {
    "handle" : "COBER-ARIN",
    "name" : "Coberly, James",
    "email" : [ "james@xmc.com" ],
    "phone" : [ "+1-303-800-1300" ],
    "source" : "https://rdap.arin.net/registry/entity/COBER-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "ABUSE7475-ARIN",
    "name" : "Abuse Department",
    "email" : [ "abuse@massivenetworks.com" ],
    "phone" : [ "+1-303-800-1300" ],
    "source" : "https://rdap.arin.net/registry/entity/ABUSE7475-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS39938	River Canyon Wireless	US
AS286	GTT Communications Inc.	NL
AS286	GTT Communications Inc.	US
AS4826	Vocus Connect International Backbone	AU
AS2914	NTT America, Inc.	US
AS4474	TCT West, Inc.	US
AS2734	CoreSite	US
AS25779	RESERVED	ZZ
AS16276	OVH SAS	FR

Upstreams

AS Number	Description	Country
AS1299	Arelion Sweden AB	SE
AS6939	Hurricane Electric LLC	US
AS286	GTT Communications Inc.	US
AS3257	GTT Communications Inc.	US
AS2914	NTT America, Inc.	US

Downstreams

AS Number	Description	Country
AS25779	IANA - Autonomous System Number	ZZ
AS39938	River Canyon Wireless	US
AS399726	XtreamInternet	US

Contacts

Email Contacts

mlewinski@massivenetworks.com james@xmc.com

Abuse Contacts

abuse@massivenetworks.com