66.128.16.0/22

AS10322 · Ercot Independent System Operations

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Summary

Country	United States
Domain	ercot.com
ASN	AS10322
Registry	ARIN
ID	ERCOT

WHOIS Details

NetHandle:      NET-66-128-16-0-1
OrgID:          ERCT-1
Parent:         NET-66-0-0-0-0
NetName:        ERCOT
NetRange:       66.128.16.0 - 66.128.31.255
NetType:        allocation
RegDate:        2004-02-24
Updated:        2021-12-14
Source:         ARIN


OrgID:          ERCT-1
OrgName:        Electric Reliability Council of Texas, Inc.
CanAllocate:    
Street:         2705 West Lake Dr.
City:           Taylor
State/Prov:     TX
Country:        US
PostalCode:     76574
RegDate:        2003-07-21
Updated:        2019-03-19
OrgAdminHandle: ENG9-ARIN
OrgTechHandle:  CHAMB250-ARIN
OrgTechHandle:  ENG9-ARIN
OrgAbuseHandle: CHAMB250-ARIN
OrgAbuseHandle: ENG9-ARIN
OrgNOCHandle:   CHAMB250-ARIN
OrgNOCHandle:   ENG9-ARIN
OrgNOCHandle:   HELPD11-ARIN
OrgNOCHandle:   SHIFT-ARIN
Source:         ARIN


POCHandle:      SHIFT-ARIN
IsRole:         Y
LastName:       Shift Supervisor
FirstName:      
Street:         7620 Metro Center Dr.
City:           Austin
State/Prov:     TX
Country:        US
PostalCode:     78744
RegDate:        2003-07-21
Updated:        2014-12-10
OfficePhone:    +1-512-225-7105
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      ENG9-ARIN
IsRole:         Y
LastName:       ERCOT Network Group
FirstName:      
Street:         2705 West Lake Drive
City:           Taylor
State/Prov:     TX
Country:        US
PostalCode:     76574
RegDate:        2015-11-30
Updated:        2025-03-21
OfficePhone:    +1-512-248-6595
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      HELPD11-ARIN
IsRole:         Y
LastName:       HelpDesk
FirstName:      
Street:         2705 West Lake Dr.
City:           Taylor
State/Prov:     TX
Country:        US
PostalCode:     76574
RegDate:        2003-07-21
Updated:        2003-07-21
OfficePhone:    +1-512-248-6800
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      CHAMB250-ARIN
IsRole:         N
LastName:       Chambers
FirstName:      Jason
Street:         2705 W Lake Drive
City:           Taylor
State/Prov:     TX
Country:        US
PostalCode:     76574
RegDate:        2017-11-15
Updated:        2023-05-31
OfficePhone:    +1-512-248-4223
Mailbox:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 66.128.0.0/16

Range	ASN	Company	Num of IPs
66.128.96.0/19	AS20115	Charter Communications LLC	8,192
66.128.160.0/19	AS13576	SDN Communications Inc.	8,192
66.128.48.0/20	AS7819	Global IP Networks INC	4,096
66.128.80.0/20	AS22995	Xplore Inc.	4,096
66.128.32.0/20	AS263236	Itelsa	4,096
66.128.0.0/20	AS30666	Xchange Telecom Corp.	4,096
66.128.208.0/20	AS32022	Children's Hospital Colorado	4,096
66.128.224.0/20	AS3561	CenturyLink Communications, LLC	4,096
66.128.64.0/20	AS3561	CenturyLink Communications, LLC	4,096
66.128.240.0/20	AS40237	United Telephone Company	4,096
66.128.128.0/20	AS54665	Trailwave Fiber, Inc.	4,096
66.128.164.0/23	AS15204	ITC Telecom	512
66.128.184.0/23	AS15204	ITC Telecom	512
66.128.166.0/23	AS13576	Midstate communications	512
66.128.162.0/23	AS15204	ITC Telecom	512
66.128.171.0/24	AS13576	Valley Telecommunications	256
66.128.181.0/24	AS46566	CAPITAL SERVICES	256
66.128.189.0/24	AS395037	MNL-8	256
66.128.178.0/24	AS398112	Poet	256
66.128.177.0/24	AS398176	JDS Industries	256
66.128.182.0/24	AS15204	ITC Telecom	256
66.128.173.0/24	AS13576	Valley Telephone Company	256
66.128.174.0/24	AS13576	B-Y Internet, LLC	256
66.128.175.0/24	AS13576	Midstate communications	256
66.128.176.0/24	AS13576	COMMUNITY INTERNET SERVICE	256
66.128.179.0/24	AS13576	SDN-BCKB	256
66.128.183.0/24	AS15204	ITC Telecom	256
66.128.188.0/24	AS14675	PLAINS COMMERCE BANK	256
66.128.161.0/24	AS18785	Santel Communications Cooperative, Inc.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

99 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
66.128.16.3	AS10322 Ercot Independent System Operations	`7.88ms` from Dallas, US
66.128.17.2	AS10322 Ercot Independent System Operations	`7.22ms` from Dallas, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
4.246.227.150	AS8075 Microsoft Corporation	`0.61ms` from Ashburn, US
129.74.72.22	AS693 University of Notre Dame	`9.97ms` from Chicago, US
12.106.178.6	AS7018 AT&T Enterprises, LLC	`1.25ms` from Chicago, US
98.214.223.22	AS7922 Comcast Cable Communications, LLC	`5.91ms` from Chicago, US
102.22.121.182	AS328399 Vaal Networking Consultants (PTY) LTD	`2.09ms` from Johannesburg, ZA
163.61.137.6	AS137910 Wavecomm (Private) Limited	`0.66ms` from Karachi, PK
81.152.128.246	AS2856 British Telecommunications PLC	`3.88ms` from London, GB
75.140.10.182	AS20115 Charter Communications LLC	`3.38ms` from Los Angeles, US
80.81.208.38	AS34784 RuSat Ltd.	`1.12ms` from Moscow, RU
126.92.197.22	AS17676 SoftBank Corp.	`3.90ms` from Osaka, JP
168.121.65.198	AS28649 Desktop Sigmanet Comunicação Multimídia SA	`1.73ms` from Osasco, BR
206.206.242.118	AS2900 Arizona Tri University Network	`1.55ms` from Phoenix, US
64.201.95.102	AS21555 LAUREL HIGHLAND TELEPHONE COMPANY	`2.69ms` from Pittsburgh, US
98.45.10.134	AS7922 Comcast Cable Communications, LLC	`6.13ms` from San Jose, US
187.234.16.70	AS8151 UNINET	`4.90ms` from Santiago de Queretaro, MX
176.69.66.86	AS1257 Tele2 Sverige AB	`0.66ms` from Stockholm, SE
60.135.72.230	AS17676 SoftBank Corp.	`2.54ms` from Tokyo, JP
85.214.3.150	AS6724 Strato GmbH	`0.48ms` from Berlin, DE
96.86.78.182	AS7922 Comcast Cable Communications, LLC	`6.52ms` from Boston, US
149.78.46.214	AS263801 LINKEAR SRL	`7.65ms` from Buenos Aires, AR
76.217.36.38	AS7018 AT&T Enterprises, LLC	`8.12ms` from Dallas, US
34.18.132.198	AS396982 Google LLC	`0.10ms` from Doha, QA
92.27.61.22	AS13285 TalkTalk Communications Limited	`4.46ms` from Erith, GB
115.214.251.182	AS4134 CHINANET-BACKBONE	`8.23ms` from Hangzhou, CN
88.255.87.22	AS9121 Turk Telekomunikasyon Anonim Sirketi	`0.55ms` from Istanbul, TR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f4 66.128.16.102

traceroute to 66.128.16.102 (66.128.16.102): 64 hops max, 52 byte packets

4 [AS3491] 63.218.229.170 1.773 ms

5 *

6 [AS11427] 64.183.182.230 281.608 ms

7 *

8 *

9 *

10 *

11 [AS10322] 66.128.16.102 252.413 ms

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On January 30th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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