ASN AS11250 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11250?

AS11250 is listed under Tri State Generation and Transmission Association, 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.

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AS11250 Tri State Generation and Transmission Association, Inc.

ASN Lookup Tool

Tri State Generation and Transmission Association, Inc. tristategt.org

US 11 Routes

AS Data

AS11250

AS11250 – Tri State Generation and Transmission Association, Inc.

AS Number	11250
AS Name	TRI-STATE-G-AND-T
Organization	Tri State Generation and Transmission Association, Inc. (tgta)
Country	US
Website	tristategt.org
Number of IPv4 Routes	10
Number of IPv6 Routes	1
ASN type	BUSINESS
Registry	ARIN
Date Allocated	1998-06-01

ASN Intelligence API for production workflows

Use ASN data for AS11250 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.176.183.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	256
198.176.244.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	256
2620:10a:e000::/40	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	~309×10²⁴
198.176.243.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	256
198.176.242.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	256
198.176.240.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	256
204.75.190.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	256
198.176.241.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	256
198.176.245.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	256
204.75.191.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, Inc.	256
204.75.192.0/24	AS11250	Tri State Generation and Transmission Association, Inc.	Tri State Generation and Transmission Association, 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:       11250
ASName:         TRI-STATE-G-AND-T
ASHandle:       AS11250
RegDate:        1998-06-01
Updated:        2026-09-21
Ref:            https://rdap.arin.net/registry/autnum/11250


OrgName:        Tri-State Generation and Transmission Association, Inc.
OrgId:          TGTA
Address:        1100 w 116th Ave
City:           Westminster
StateProv:      CO
PostalCode:     80234
Country:        US
RegDate:        1993-09-22
Updated:        2026-03-27
Ref:            https://rdap.arin.net/registry/entity/TGTA


OrgAbuseHandle: NETWO10489-ARIN
OrgAbuseName:   Network Engineering
OrgAbusePhone:  +1-720-470-0661 
OrgAbuseEmail:  melvinsam.charuvilayil@tristategt.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO10489-ARIN

OrgDNSHandle: NETWO10489-ARIN
OrgDNSName:   Network Engineering
OrgDNSPhone:  +1-720-470-0661 
OrgDNSEmail:  melvinsam.charuvilayil@tristategt.org
OrgDNSRef:    https://rdap.arin.net/registry/entity/NETWO10489-ARIN

OrgNOCHandle: NETWO10489-ARIN
OrgNOCName:   Network Engineering
OrgNOCPhone:  +1-720-470-0661 
OrgNOCEmail:  melvinsam.charuvilayil@tristategt.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO10489-ARIN

OrgTechHandle: NETWO10489-ARIN
OrgTechName:   Network Engineering
OrgTechPhone:  +1-720-470-0661 
OrgTechEmail:  melvinsam.charuvilayil@tristategt.org
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO10489-ARIN

OrgRoutingHandle: NETWO10489-ARIN
OrgRoutingName:   Network Engineering
OrgRoutingPhone:  +1-720-470-0661 
OrgRoutingEmail:  melvinsam.charuvilayil@tristategt.org
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NETWO10489-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" : "11250",
    "as_handle" : "AS11250",
    "as_name" : "TRI-STATE-G-AND-T",
    "admin_contacts" : [ "NETWO10489-ARIN" ],
    "tech_contacts" : [ "NETWO10489-ARIN", "NETWO10489-ARIN" ],
    "abuse_contacts" : [ "NETWO10489-ARIN" ],
    "date_created" : "1998-06-01",
    "date_updated" : "2026-09-21",
    "source" : "https://rdap.arin.net/registry/autnum/11250"
  } ],
  "organization" : {
    "handle" : "TGTA",
    "name" : "Tri-State Generation and Transmission Association, Inc.",
    "address" : [ "1100 w 116th Ave", "Westminster", "CO", "80234", "US" ],
    "street" : "W 116th Ave",
    "city" : "Westminster",
    "state" : "CO",
    "zip_code" : "80234",
    "country" : [ "US" ],
    "date_created" : "1993-09-22",
    "date_updated" : "2026-03-27",
    "source" : "https://rdap.arin.net/registry/entity/TGTA",
    "addressCountry" : "US"
  },
  "administrative_contacts" : [ {
    "handle" : "NETWO10489-ARIN",
    "name" : "Network Engineering",
    "email" : [ "melvinsam.charuvilayil@tristategt.org" ],
    "phone" : [ "+1-720-470-0661" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO10489-ARIN"
  } ],
  "technical_contacts" : [ {
    "handle" : "NETWO10489-ARIN",
    "name" : "Network Engineering",
    "email" : [ "melvinsam.charuvilayil@tristategt.org" ],
    "phone" : [ "+1-720-470-0661" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO10489-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NETWO10489-ARIN",
    "name" : "Network Engineering",
    "email" : [ "melvinsam.charuvilayil@tristategt.org" ],
    "phone" : [ "+1-720-470-0661" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO10489-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS30688	FastTrack Communications Inc.	US
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US

Upstreams

AS Number	Description	Country
AS30688	FastTrack Communications Inc.	US
AS3356	Level 3 Parent, LLC	US
AS6461	Zayo Bandwidth	US