Autonomous System details

AS13576

SDN Communications · sdncommunications.com

United States

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AS13576 – SDN Communications

Field	Value
Country	United States
Website	sdncommunications.com
Hosted domains	777
IPv4 addresses	114,944
IPv6 addresses	163,408,085,185,670,197,100,000,000,000
ASN type	ISP
Registry	arin
Allocated	27 years ago on Jul 08, 1999
Updated	3 months ago on Feb 04, 2026

Netblock	Company	Num of IPs
66.115.192.0/18	SDN Communications	16,384
208.53.192.0/18	SDN Communications	16,384
216.106.192.0/18	SDN Communications	16,384
216.249.192.0/18	SDN Communications	16,384
64.33.224.0/19	SDN Communications	8,192
66.128.160.0/19	SDN Communications	8,192
66.231.0.0/19	SDN Communications	8,192
68.168.224.0/20	C.R.S.T. Telephone Authority	4,096
98.159.176.0/20	Venture Communications Cooperative	4,096
209.151.176.0/20	SDN Communications	4,096
38.67.248.0/21	Venture Communications Cooperative	2,048
206.85.176.0/21	Valley Telecommunications	2,048
216.249.248.0/21	Venture Communications	2,048
38.50.52.0/22	Venture Communications Cooperative	1,024
38.191.156.0/22	Santel Communications Cooperative, Inc.	1,024
104.167.204.0/22	Valley FiberCom	1,024
142.202.132.0/22	Valley FiberCom	1,024
199.96.68.0/22	Valley FiberCom	1,024
209.142.104.0/22	Venture Communications Cooperative	1,024
216.106.216.0/22	Valley Telephone Company	1,024
216.106.232.0/22	Alliance Communications	1,024
216.249.244.0/22	Venture Communications	1,024
66.115.252.0/23	Midstate Communications, Inc.	512
66.128.166.0/23	Midstate communications	512
162.120.74.0/23	Midstate Communications, Inc.	512
170.199.220.0/23	Midstate Communications, Inc.	512
208.53.198.0/23	Midstate communications	512
208.53.224.0/23	Venture Communications	512
208.53.226.0/23	Venture Communications	512
208.53.228.0/23	Venture Communications	512
208.53.230.0/23	Venture Communications	512
208.53.232.0/23	Venture Communications	512
208.53.234.0/23	Venture Communications	512
208.53.236.0/23	Venture Communications	512
216.249.222.0/23	Kennebec Telephone Company	512
216.249.224.0/23	Midstate communications	512
216.249.242.0/23	Midstate communications	512
64.33.252.0/24	Midstate communications	256
66.115.198.0/24	Midstate communications	256
66.115.201.0/24	NATIVE AMERICAN TELECOM	256
66.115.220.0/24	First Premier	256
66.115.221.0/24	First Premier	256
66.115.223.0/24	Valley Telephone Company	256
66.115.224.0/24	COMMUNITY INTERNET SERVICE	256
66.115.226.0/24	Kennebec Telephone Company	256
66.115.227.0/24	Next Level Technology Group LLC	256
66.115.234.0/24	Valley Telephone Company	256
66.115.235.0/24	Sencore	256
66.115.254.0/24	Valley Telephone Company	256
66.128.171.0/24	Valley Telecommunications	256
66.128.173.0/24	Valley Telephone Company	256
66.128.174.0/24	B-Y Internet, LLC	256
66.128.175.0/24	Midstate communications	256
66.128.176.0/24	COMMUNITY INTERNET SERVICE	256
66.128.179.0/24	SDN-BCKB	256
66.231.0.0/24	SDN-BCKB	256
66.231.15.0/24	B-Y Internet, LLC	256
66.231.21.0/24	SDN-BCKB	256
66.231.26.0/24	Midstate communications	256
66.231.29.0/24	Sturdevant's	256
76.76.12.0/24	Interlakeswireless	256
155.103.92.0/24	Pacy World	256
170.199.218.0/24	Midstate Communications, Inc.	256
170.199.219.0/24	Midstate Communications, Inc.	256
204.80.157.0/24	Midstate Communications, Inc.	256
208.53.193.0/24	Midstate communications	256
208.53.194.0/24	Hanson Communications, Inc.	256
208.53.196.0/24	Midstate communications	256
208.53.197.0/24	Midstate communications	256
208.53.202.0/24	Hanson Communications, Inc.	256
208.53.203.0/24	FORT RANDALL TELEPHONE	256
208.53.207.0/24	SDN-BCKB	256
208.53.208.0/24	SDN-BCKB	256
208.53.209.0/24	Midstate communications	256
208.53.211.0/24	Hanson Communications, Inc.	256
208.53.221.0/24	Midstate Communications, Inc.	256
208.53.238.0/24	Venture Communications	256
208.53.252.0/24	Infotech Solutions LLC	256
208.53.253.0/24	Venture Communications	256
209.151.181.0/24	KENNEBEC TELEPHONE COMPANY	256
216.249.195.0/24	Alliance Communications	256
216.249.197.0/24	Valley Telephone Company	256
216.249.214.0/24	Interlakes Wireless	256
216.249.227.0/24	WideVoice Communications, Inc.	256
216.249.240.0/24	NATIVE AMERICAN TELECOM	256

Netblock	Company
2605:4900::/32	Venture Communications Cooperative
2607:fc00::/32	SDN Communications
2602:ff5b::/36	Midstate Communications, Inc.

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WHOIS Details

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                                                ASHandle:       AS13576
                                                OrgID:          AS13576
                                                ASName:         AS13576
                                                ASNumber:       AS13576
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 777 domain names hosted across 267 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
66.128.170.22	██████████	69
66.231.0.106	██████████	30
66.115.227.2	██████████	14
66.115.200.50	██████████	14
66.231.15.221	██████████	14
199.96.70.143	██████████	8
66.128.186.163	██████████	8
66.115.200.6	██████████	7
66.128.160.56	██████████	7
66.115.210.6	██████████	7

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Peers

There are 62 peers for this ASN.

Peers	Name
AS10551	Monument Health Rapid City Hospital, Inc.
AS12042	Fidium
AS1299	Arelion Sweden AB
AS14041	University Corporation for Atmospheric Research
AS14537	Continent 8 LLC
AS14675	Plains Commerce Bank
AS14789	Cloudflare, Inc.
AS14955	Northern Valley Communications LLC
AS15100	Bevcomm
AS15157	NORTHWESTERN CORPORATION
AS15204	INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC.
AS17203	Beresford Municipal Telephone Company
AS17378	TierPoint, LLC
AS174	Cogent Communications, LLC
AS1828	Unitas Global
AS18785	Santel Communications Cooperative, Inc.
AS18870	Great Western Bank
AS19031	CU*Answers, Inc.
AS19754	The Fusion Network, LLC
AS20014	West River Cooperative Telephone Company
AS20300	Woodstock Telephone Company
AS22223	MVTV Wireless
AS23011	FreeConferenceCall.com
AS25732	Total Card, Inc.
AS26023	Schwan's Shared Services, LLC.
AS26793	ICS Advanced Technologies
AS26860	SWIFTEL COMMUNICATIONS
AS27539	West River Telecommunications Cooperative
AS286	GTT Communications Inc.
AS2914	NTT America, Inc.
AS30220	SWWC Service Cooperatives
AS32231	Pathward, N.A.
AS3257	GTT Communications Inc.
AS32598	Opzix
AS32621	Twin City VoIP, Inc.
AS36013	Missouri River Energy Services
AS36236	NetActuate, Inc
AS393452	Flandreau Santee Sioux Tribe
AS393821	Lismore Cooperative Telephone Company
AS394790	AVERA MCKENNAN
AS395037	Sammons Financial Group, Inc.
AS396119	AVERA MCKENNAN
AS396164	Black Hills Federal Credit Union
AS397608	Hanson Communications, Inc.
AS397745	Hanson Communications, Inc.
AS398112	POET, LLC
AS398176	JDS INDUSTRIES, INC
AS399036	Xigent Solutions, LLC
AS399439	Mitchell Telecom
AS399763	Issues Management, Inc.
AS401415	Alliance Communications
AS4181	TDS TELECOM
AS46566	CAPITAL Card Services, Inc.
AS46623	Fishback Financial Corporation
AS46900	Rushmore Electric Power Cooperative, Inc.
AS47097	AmeriPharm Inc.
AS53309	Black Hills Corporation
AS6312	TrioTel Communications, Inc.
AS64289	Macarne.com
AS6461	Zayo Bandwidth
AS6580	Golden West Telecommunications Coop., Inc.
AS6939	Hurricane Electric LLC

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ASN API & Database

Upstreams

There are 6 upstreams for this ASN.

upstreams	Name
AS1299	Arelion Sweden AB
AS174	Cogent Communications, LLC
AS2914	NTT America, Inc.
AS3257	GTT Communications Inc.
AS6461	Zayo Bandwidth
AS6939	Hurricane Electric LLC

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ASN API & Database

Downstreams

There are 47 downstreams for this ASN.

Downstreams	Name
AS10551	Monument Health Rapid City Hospital, Inc.
AS12042	Fidium
AS14675	Plains Commerce Bank
AS14789	Cloudflare, Inc.
AS14955	Northern Valley Communications LLC
AS15100	Bevcomm
AS15157	NORTHWESTERN CORPORATION
AS15204	INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC.
AS17203	Beresford Municipal Telephone Company
AS17378	TierPoint, LLC
AS18785	Santel Communications Cooperative, Inc.
AS18870	Great Western Bank
AS19031	CU*Answers, Inc.
AS20014	West River Cooperative Telephone Company
AS20300	Woodstock Telephone Company
AS22223	MVTV Wireless
AS23011	FreeConferenceCall.com
AS25732	Total Card, Inc.
AS26023	Schwan's Shared Services, LLC.
AS26793	ICS Advanced Technologies
AS26860	SWIFTEL COMMUNICATIONS
AS27539	West River Telecommunications Cooperative
AS30220	SWWC Service Cooperatives
AS32231	Pathward, N.A.
AS32598	Opzix
AS36013	Missouri River Energy Services
AS393452	Flandreau Santee Sioux Tribe
AS393821	Lismore Cooperative Telephone Company
AS394790	AVERA MCKENNAN
AS395037	Sammons Financial Group, Inc.
AS396119	AVERA MCKENNAN
AS396164	Black Hills Federal Credit Union
AS397608	Hanson Communications, Inc.
AS397745	Hanson Communications, Inc.
AS398112	POET, LLC
AS398176	JDS INDUSTRIES, INC
AS399036	Xigent Solutions, LLC
AS399439	Mitchell Telecom
AS399763	Issues Management, Inc.
AS401415	Alliance Communications
AS46566	CAPITAL Card Services, Inc.
AS46623	Fishback Financial Corporation
AS46900	Rushmore Electric Power Cooperative, Inc.
AS47097	AmeriPharm Inc.
AS53309	Black Hills Corporation
AS6312	TrioTel Communications, Inc.
AS6580	Golden West Telecommunications Coop., Inc.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
68.168.231.97	AS13576 SDN Communications	`12.54ms` from Denver, US
68.168.232.144	AS13576 SDN Communications	`12.34ms` from Denver, US
2607:fc00:5:3::1	AS13576 SDN Communications	`13.14ms` from Kansas City, US
98.159.187.29	AS13576 SDN Communications	`4.71ms` from Sioux Falls, US
208.53.228.230	AS13576 SDN Communications	`6.83ms` from Sioux Falls, US
66.115.218.145	AS13576 SDN Communications	`0.55ms` from Sioux Falls, US
216.106.232.3	AS13576 SDN Communications	`1.66ms` from Sioux Falls, US
216.249.248.243	AS13576 SDN Communications	`8.60ms` from Sioux Falls, US
68.168.234.245	AS13576 SDN Communications	`12.87ms` from Denver, US
68.168.225.1	AS13576 SDN Communications	`11.86ms` from Denver, US
170.199.220.3	AS13576 SDN Communications	`3.14ms` from Sioux Falls, US
142.202.133.70	AS13576 SDN Communications	`11.01ms` from Sioux Falls, US
66.231.29.254	AS13576 SDN Communications	`0.58ms` from Sioux Falls, US
66.115.200.25	AS13576 SDN Communications	`0.55ms` from Sioux Falls, US
38.67.254.146	AS13576 SDN Communications	`6.34ms` from Sioux Falls, US
66.115.232.77	AS13576 SDN Communications	`0.55ms` from Sioux Falls, US
66.128.168.89	AS13576 SDN Communications	`0.55ms` from Sioux Falls, US
66.128.175.3	AS13576 SDN Communications	`3.14ms` from Sioux Falls, US
66.231.0.96	AS13576 SDN Communications	`0.56ms` from Sioux Falls, US
66.128.166.3	AS13576 SDN Communications	`3.14ms` from Sioux Falls, US
66.115.197.78	AS13576 SDN Communications	`5.48ms` from Sioux Falls, US
64.33.236.65	AS13576 SDN Communications	`0.54ms` from Sioux Falls, US
38.191.158.82	AS13576 SDN Communications	`5.12ms` from Sioux Falls, US
66.231.5.193	AS13576 SDN Communications	`0.55ms` from Sioux Falls, US
216.249.225.141	AS13576 SDN Communications	`4.01ms` from Sioux Falls, 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
131.180.163.72	AS1128 SURF B.V.	`1.68ms` from Amsterdam, NL
136.113.64.248	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
51.77.114.104	AS16276 OVH SAS	`0.07ms` from Erith, GB
60.184.242.40	AS4134 CHINANET BACKBONE	`9.98ms` from Hangzhou, CN
14.224.9.184	AS45899 VNPT Corp	`3.88ms` from Hanoi, VN
193.228.112.8	AS34785 Stadtwerke Klagenfurt AG	`0.48ms` from Klagenfurt am Wörthersee, AT
184.24.128.200	AS16625 Akamai Technologies, Inc.	`0.65ms` from Lima, PE
99.153.164.200	AS7018 AT&T Enterprises, LLC	`17.13ms` from Miami, US
118.32.58.88	AS4766 Korea Telecom	`1.31ms` from Seoul, KR
172.124.62.88	AS7018 AT&T Enterprises, LLC	`2.00ms` from Atlanta, US
24.60.32.40	AS7922 Comcast Cable Communications, LLC	`4.62ms` from Boston, US
34.132.107.88	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
101.33.203.104	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.94ms` from Guangzhou, CN
202.8.123.168	AS135357 HONG KONG KOWLOON TELECOMMUNICATIONS CO.,LIMITED	`1.07ms` from Hong Kong, HK
97.246.163.40	AS6167 Verizon Business	`14.73ms` from Los Angeles, US
200.2.36.88	AS6057 Administracion Nacional de Telecomunicaciones	`1.17ms` from Montevideo, UY
54.207.226.104	AS16509 Amazon.com, Inc.	`0.13ms` from Osasco, BR
131.221.57.232	AS262765 Net Fácil Sistemas Eletrônicos Ltda ME	`4.93ms` from Sao Paulo, BR
138.204.189.40	AS263918 WS TELECOMUNICACOES LTDA EPP	`11.32ms` from Sao Paulo, BR
34.53.96.248	AS396982 Google LLC	`0.16ms` from The Dalles, US
80.83.26.152	AS35197 Virtual ISP s.a.l.	`1.41ms` from Beirut, LB
92.122.212.40	AS20940 Akamai International B.V.	`0.28ms` from Frankfurt am Main, DE
168.105.0.8	AS6360 University of Hawaii	`1.26ms` from Honolulu, US
121.183.67.200	AS4766 Korea Telecom	`5.26ms` from Incheon, KR
199.180.82.120	AS33398 Miva Merchant, Inc.	`1.32ms` from Las Vegas, US

Traceroute

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

traceroute -a -n -q1 -m8 66.128.190.183

traceroute to 66.128.190.183 (66.128.190.183): 8 hops max, 52 byte packets

1 [AS15169] 142.251.243.111 10.478 ms

2 [AS15169] 192.178.86.60 10.651 ms

3 *

4 [AS13576] 66.231.21.57 28.752 ms

5 [AS13576] 66.231.21.62 28.173 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Council Bluffs, US

On April 13th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS13576 at robtex.

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