Autonomous System details

AS3477

National Oceanic and Atmospheric Administration · noaa.gov

United States

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AS3477 – National Oceanic and Atmospheric Administration

Field	Value
Country	United States
Website	noaa.gov
Hosted domains	27
IPv4 addresses	323,840
IPv6 addresses	635,824,863,419,757,300,683,900,000,000
ASN type	Government
Registry	arin
Allocated	32 years ago on Mar 08, 1994
Updated	6 years ago on Sep 04, 2020

Netblock	Company	Num of IPs
140.90.0.0/16	National Oceanic and Atmospheric Administration	65,536
140.172.0.0/16	National Oceanic and Atmospheric Administration	65,536
155.206.0.0/16	National Oceanic and Atmospheric Administration	65,536
161.55.0.0/16	National Oceanic and Atmospheric Administration	65,536
137.75.64.0/18	National Oceanic and Atmospheric Administration	16,384
205.156.0.0/18	National Oceanic and Atmospheric Administration	16,384
198.206.32.0/19	National Weather Service Eastern Region Headquarters	8,192
140.208.192.0/20	Office of Oceanic and Atmospheric Research - Geophysical Fluid Dynamics Laboratory	4,096
137.75.88.0/21	National Oceanic and Atmospheric Administration	2,048
137.75.68.0/22	National Oceanic and Atmospheric Administration	1,024
137.75.72.0/22	National Oceanic and Atmospheric Administration	1,024
137.75.76.0/22	National Oceanic and Atmospheric Administration	1,024
137.75.80.0/22	National Oceanic and Atmospheric Administration	1,024
137.75.96.0/22	National Oceanic and Atmospheric Administration	1,024
137.75.100.0/22	National Oceanic and Atmospheric Administration	1,024
137.75.108.0/22	National Oceanic and Atmospheric Administration	1,024
137.75.112.0/22	National Oceanic and Atmospheric Administration	1,024
137.75.116.0/22	National Oceanic and Atmospheric Administration	1,024
137.75.224.0/22	National Oceanic and Atmospheric Administration	1,024
140.208.252.0/22	National Oceanic and Atmospheric Administration	1,024
161.55.56.0/23	National Oceanic and Atmospheric Administration	512
199.242.232.0/23	National Oceanic and Atmospheric Administration	512
204.193.246.0/23	U.S. Department of Commerce	512
137.75.82.0/24	National Oceanic and Atmospheric Administration	256
137.75.106.0/24	National Oceanic and Atmospheric Administration	256
137.75.120.0/24	National Oceanic and Atmospheric Administration	256
140.90.28.0/24	National Oceanic and Atmospheric Administration	256
140.90.101.0/24	National Oceanic and Atmospheric Administration	256
140.90.190.0/24	National Oceanic and Atmospheric Administration	256
140.208.253.0/24	National Oceanic and Atmospheric Administration	256
151.207.8.0/24	United States Patent and Trademark Office	256
151.207.9.0/24	United States Patent and Trademark Office	256
151.207.12.0/24	United States Patent and Trademark Office	256
151.207.13.0/24	United States Patent and Trademark Office	256
161.55.224.0/24	National Oceanic and Atmospheric Administration	256
165.92.182.0/24	National Oceanic and Atmospheric Administration	256
165.92.184.0/24	National Oceanic and Atmospheric Administration	256
165.92.186.0/24	National Oceanic and Atmospheric Administration	256
165.92.187.0/24	National Oceanic and Atmospheric Administration	256
165.92.222.0/24	National Oceanic and Atmospheric Administration	256
192.35.128.0/24	National Oceanic and Atmospheric Administration	256
192.35.129.0/24	National Oceanic and Atmospheric Administration	256
192.46.108.0/24	DOC/NOAA/NWS	256
192.58.1.0/24	National Oceanic and Atmospheric Administration	256
192.58.2.0/24	National Oceanic and Atmospheric Administration	256
192.58.3.0/24	National Oceanic and Atmospheric Administration	256
192.67.97.0/24	National Oceanic and Atmospheric Administration	256
192.67.134.0/24	National Oceanic and Atmospheric Administration	256
192.94.173.0/24	Great Lakes Environmental Research Laboratory	256
192.111.123.0/24	Atlantic Oceanographic and Meteorological Laboratory	256
192.133.29.0/24	National Oceanic and Atmospheric Administration	256
192.153.129.0/24	National Oceanic and Atmospheric Administration	256
198.51.11.0/24	National Telecommunications and Information Administration	256
198.180.147.0/24	National Oceanic and Atmospheric Administration	256
198.200.151.0/24	National Weather Service Western Region Headquarters	256
199.104.104.0/24	National Weather Service Western Region Headquarters	256
199.104.105.0/24	National Weather Service Western Region Headquarters	256
199.242.231.0/24	National Oceanic and Atmospheric Administration	256
204.145.202.0/24	National Weather Service Western Region Headquarters	256
204.193.241.0/24	U.S. Department of Commerce	256
204.193.244.0/24	U.S. Department of Commerce	256
204.193.245.0/24	U.S. Department of Commerce	256
204.228.175.0/24	National Weather Service Western Region Headquarters	256
204.228.176.0/24	National Weather Service Western Region Headquarters	256
204.228.177.0/24	National Weather Service Western Region Headquarters	256
204.228.178.0/24	National Weather Service Western Region Headquarters	256
204.228.179.0/24	National Weather Service Western Region Headquarters	256
204.228.180.0/24	National Weather Service Western Region Headquarters	256
204.228.181.0/24	National Weather Service Western Region Headquarters	256
204.228.182.0/24	National Weather Service Western Region Headquarters	256
204.228.183.0/24	National Weather Service Western Region Headquarters	256
204.228.184.0/24	National Weather Service Western Region Headquarters	256
204.228.185.0/24	National Weather Service Western Region Headquarters	256
204.228.186.0/24	National Weather Service Western Region Headquarters	256
204.228.187.0/24	National Weather Service Western Region Headquarters	256
204.228.188.0/24	National Weather Service Western Region Headquarters	256
204.228.189.0/24	National Weather Service Western Region Headquarters	256
204.228.190.0/24	National Weather Service Western Region Headquarters	256
204.228.191.0/24	National Weather Service Western Region Headquarters	256
205.159.118.0/24	U.S. Department of Commerce	256
205.166.33.0/24	National Oceanic and Atmospheric Administration	256
205.167.24.0/24	National Oceanic and Atmospheric Administration	256
205.167.25.0/24	National Oceanic and Atmospheric Administration	256
206.197.238.0/24	U.S. Department of Commerce	256

Netblock	Company
2601:a000::/32	National Oceanic and Atmospheric Administration
2601:a002::/32	National Oceanic and Atmospheric Administration
2601:a004::/32	NOAABO
2601:a005::/32	National Oceanic and Atmospheric Administration
2601:a008::/32	National Oceanic and Atmospheric Administration
2601:a010::/32	National Oceanic and Atmospheric Administration
2601:a012::/32	NOAABO
2601:a013::/32	National Oceanic and Atmospheric Administration
2610:20:8800::/38	National Oceanic and Atmospheric Administration
2610:20:9200::/40	National Oceanic and Atmospheric Administration
2610:20:9300::/40	National Oceanic and Atmospheric Administration
2607:9bc0:1010::/44	First Responder Network Authority
2607:9bc0:1020::/44	First Responder Network Authority
2610:20:8040::/44	National Oceanic and Atmospheric Administration
2610:20:8c00::/44	National Oceanic and Atmospheric Administration
2610:20:8c20::/44	National Oceanic and Atmospheric Administration
2610:20:90a0::/44	National Oceanic and Atmospheric Administration
2610:20:9008::/45	National Oceanic and Atmospheric Administration
2602:810:d004::/46	United States Patent and Trademark Office
2620:12e:b000::/46	National Telecommunications and Information Administration
2610:20:900e::/47	National Oceanic and Atmospheric Administration
2601:a002:5f::/48	National Oceanic and Atmospheric Administration
2610:20:90e2::/48	National Oceanic and Atmospheric Administration
2610:20:9124::/48	National Oceanic and Atmospheric Administration
2610:20:9147::/48	National Oceanic and Atmospheric Administration

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WHOIS Details

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                                                ASHandle:       AS3477
                                                OrgID:          AS3477
                                                ASName:         AS3477
                                                ASNumber:       AS3477
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 27 domain names hosted across 14 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
137.75.88.7	████████	12
137.75.88.52	████████	11
140.172.184.1	██████████	2
137.75.111.158	██████████	1
137.75.101.20	██████████	1
161.55.88.75	██████████	1
137.75.121.202	██████████	1
140.172.190.2	██████████	1
137.75.121.228	██████████	1
140.172.200.41	██████████	1

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Peers

There are 12 peers for this ASN.

Peers	Name
AS11956	National Oceanic and Atmospheric Administration
AS12076	Microsoft Corporation
AS16550	Google LLC
AS26100	National Oceanic and Atmospheric Administration
AS2648	National Oceanic and Atmospheric Administration
AS30687	National Weather Service Southern Region Headquarters
AS33343	U.S. Department of Commerce, HQ and ITA
AS3635	U.S. Department of Commerce, Bureau of Economic Analysis
AS40623	Office of Oceanic and Atmospheric Research - Geophysical Fluid Dynamics Laboratory
AS49	National Institute of Standards and Technology
AS5744	United States Patent and Trademark Office
AS6629	National Oceanic and Atmospheric Administration

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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams	Name
AS11956	National Oceanic and Atmospheric Administration
AS26100	National Oceanic and Atmospheric Administration

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ASN API & Database

Downstreams

There are 10 downstreams for this ASN.

Downstreams	Name
AS12076	Microsoft Corporation
AS16550	Google LLC
AS2648	National Oceanic and Atmospheric Administration
AS30687	National Weather Service Southern Region Headquarters
AS33343	U.S. Department of Commerce, HQ and ITA
AS3635	U.S. Department of Commerce, Bureau of Economic Analysis
AS40623	Office of Oceanic and Atmospheric Research - Geophysical Fluid Dynamics Laboratory
AS49	National Institute of Standards and Technology
AS5744	United States Patent and Trademark Office
AS6629	National Oceanic and Atmospheric Administration

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
140.90.98.51	AS3477 National Oceanic and Atmospheric Administration	`2.77ms` from Ashburn, US
140.90.233.1	AS3477 National Oceanic and Atmospheric Administration	`2.77ms` from Ashburn, US
140.172.189.254	AS3477 National Oceanic and Atmospheric Administration	`1.65ms` from Denver, US
161.55.254.19	AS3477 National Oceanic and Atmospheric Administration	`0.14ms` from Seattle, US
137.75.108.49	AS3477 National Oceanic and Atmospheric Administration	`2.30ms` from Ashburn, US
140.90.155.130	AS3477 National Oceanic and Atmospheric Administration	`3.22ms` from Ashburn, US
140.90.86.12	AS3477 National Oceanic and Atmospheric Administration	`2.76ms` from Ashburn, US
205.156.62.25	AS3477 National Oceanic and Atmospheric Administration	`605.55ms` from Ashburn, US
155.206.244.130	AS3477 National Oceanic and Atmospheric Administration	`3.57ms` from Ashburn, US
140.90.71.88	AS3477 National Oceanic and Atmospheric Administration	`3.08ms` from Ashburn, US
205.159.118.139	AS3477 National Oceanic and Atmospheric Administration	`3.26ms` from Ashburn, US
140.172.192.210	AS3477 National Oceanic and Atmospheric Administration	`1.77ms` from Denver, US
140.172.184.254	AS3477 National Oceanic and Atmospheric Administration	`1.65ms` from Denver, US
140.172.183.254	AS3477 National Oceanic and Atmospheric Administration	`1.66ms` from Denver, US
140.90.144.88	AS3477 National Oceanic and Atmospheric Administration	`6.95ms` from Ashburn, US
205.156.33.173	AS3477 National Oceanic and Atmospheric Administration	`2.44ms` from Ashburn, US
137.75.106.12	AS3477 National Oceanic and Atmospheric Administration	`99.44ms` from Ashburn, US
137.75.64.1	AS3477 National Oceanic and Atmospheric Administration	`37.34ms` from Ashburn, US
137.75.96.65	AS3477 National Oceanic and Atmospheric Administration	`2.15ms` from Ashburn, US
140.172.143.19	AS3477 National Oceanic and Atmospheric Administration	`2.10ms` from Denver, US
161.55.253.65	AS3477 National Oceanic and Atmospheric Administration	`0.21ms` from Seattle, US
161.55.141.2	AS3477 National Oceanic and Atmospheric Administration	`0.74ms` from Seattle, US
161.55.16.4	AS3477 National Oceanic and Atmospheric Administration	`0.78ms` from Seattle, US
155.206.248.35	AS3477 National Oceanic and Atmospheric Administration	`71.19ms` from St. Louis, US
140.172.179.254	AS3477 National Oceanic and Atmospheric Administration	`1.69ms` from Denver, 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
113.44.212.213	AS55990 Huawei Cloud Service data center	`4.14ms` from Beijing, CN
190.69.236.37	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`2.57ms` from Bogotá, CO
75.247.19.21	AS6167 Verizon Business	`17.88ms` from Chicago, US
216.83.59.229	AS16509 Amazon.com, Inc.	`0.20ms` from Columbus, US
47.186.18.21	AS5650 Frontier Communications of America, Inc.	`1.84ms` from Dallas, US
68.37.109.53	AS7922 Comcast Cable Communications, LLC	`9.05ms` from Flint, US
14.181.157.245	AS45899 VNPT Corp	`1.83ms` from Hanoi, VN
14.186.167.5	AS45899 VNPT Corp	`1.50ms` from Ho Chi Minh City, VN
154.204.167.117	AS400619 AROSSCLOUD INC.	`1.05ms` from Hong Kong, HK
3.168.202.69	AS16509 Amazon.com, Inc.	`0.70ms` from Jakarta, ID
23.228.176.245	AS16591 Google Fiber Inc.	`0.58ms` from Kansas City, US
178.184.196.229	AS12389 PJSC Rostelecom	`12.98ms` from Krasnoyarsk, RU
45.32.84.101	AS20473 The Constant Company, LLC	`0.15ms` from Los Angeles, US
4.43.181.229	AS3356 Level 3 Parent, LLC	`1.22ms` from Los Angeles, US
164.173.126.69	AS668 United States Department of Defense (DoD)	`1.78ms` from Los Angeles, US
195.62.207.133	AS6717 Internet Central Limited	`8.83ms` from Manchester, GB
68.74.129.101	AS7018 AT&T Enterprises, LLC	`2.10ms` from Miami, US
60.83.121.53	AS17676 SoftBank Corp.	`3.70ms` from Osaka, JP
153.227.10.197	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.70ms` from Osaka, JP
81.49.147.85	AS3215 Orange S.A.	`4.95ms` from Paris, FR
66.50.79.197	AS10396 DATACOM CARIBE, INC.	`0.86ms` from San Juan, PR
201.215.245.101	AS22047 VTR BANDA ANCHA S.A.	`1.62ms` from Santiago, CL
36.239.119.133	AS3462 Data Communication Business Group	`4.64ms` from Taichung, TW
103.129.180.5	AS56850 Akari Networks Ltd	`0.19ms` from Taipei, TW
8.244.136.149	AS3356 Level 3 Parent, LLC	`0.35ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -m9 165.92.186.101

traceroute to 165.92.186.101 (165.92.186.101): 9 hops max, 52 byte packets

1 [AS15169] 72.14.235.121 1.295 ms

2 [AS10886] 206.196.177.14 1.628 ms

3 [AS10886] 206.196.177.137 1.907 ms

4 [AS3477] 140.208.253.4 2.327 ms

5 [AS3477] 140.172.71.250 3.062 ms

6 [AS3477] 140.208.255.101 2.132 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Ashburn, 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 AS3477 at robtex.

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