Autonomous System details

AS3477

National Oceanic and Atmospheric Administration · noaa.gov

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AS3477 – National Oceanic and Atmospheric Administration

Field	Value
Country	United States
Website	noaa.gov
Hosted domains	26
IPv4 addresses	322,816
IPv6 addresses	635,805,520,606,643,463,336,520,318,976
ASN type	Government
Registry	arin
Allocated	32 years ago on Mar 08, 1994
Updated	5 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
165.92.222.0/24	National Oceanic and Atmospheric Administration	256
170.110.254.0/24	U.S. Department of Commerce, HQ and ITA	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
204.193.244.0/24	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
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 26 domain names hosted across 13 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
140.172.200.41	████████	4
140.172.184.1	██████████	2
137.75.121.228	██████████	1
137.75.121.202	██████████	1
140.90.193.57	██████████	1
140.172.190.1	██████████	1
205.156.8.170	██████████	1
137.75.111.173	██████████	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

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

IP Address	ASN	Details
137.75.225.1	AS3477 National Oceanic and Atmospheric Administration	`17.36ms` from Ashburn, US
140.172.89.2	AS3477 National Oceanic and Atmospheric Administration	`37.79ms` from Ashburn, US
140.90.117.101	AS3477 National Oceanic and Atmospheric Administration	`5.54ms` from Ashburn, US
140.172.12.69	AS3477 National Oceanic and Atmospheric Administration	`2.15ms` from Denver, US
140.172.114.22	AS3477 National Oceanic and Atmospheric Administration	`1.59ms` from Denver, US
140.90.114.196	AS3477 National Oceanic and Atmospheric Administration	`3.40ms` from Ashburn, US
140.90.54.38	AS3477 National Oceanic and Atmospheric Administration	`4.36ms` from Ashburn, US
140.90.81.97	AS3477 National Oceanic and Atmospheric Administration	`3.47ms` from Ashburn, US
137.75.89.65	AS3477 National Oceanic and Atmospheric Administration	`2.48ms` from Ashburn, US
140.90.49.2	AS3477 National Oceanic and Atmospheric Administration	`38.76ms` from Chicago, US
140.172.180.240	AS3477 National Oceanic and Atmospheric Administration	`2.12ms` from Denver, US
192.67.97.100	AS3477 National Oceanic and Atmospheric Administration	`1.71ms` from Denver, US
140.172.117.1	AS3477 National Oceanic and Atmospheric Administration	`1.83ms` from Denver, US
161.55.205.80	AS3477 National Oceanic and Atmospheric Administration	`92.87ms` from Seattle, US
161.55.252.142	AS3477 National Oceanic and Atmospheric Administration	`0.76ms` from Seattle, US
140.90.148.1	AS3477 National Oceanic and Atmospheric Administration	`3.67ms` from Ashburn, US
192.111.123.252	AS3477 National Oceanic and Atmospheric Administration	`29.23ms` from Ashburn, US
205.156.5.97	AS3477 National Oceanic and Atmospheric Administration	`2.99ms` from Ashburn, US
137.75.108.1	AS3477 National Oceanic and Atmospheric Administration	`2.64ms` from Ashburn, US
205.159.118.140	AS3477 National Oceanic and Atmospheric Administration	`3.58ms` from Ashburn, US
140.90.233.253	AS3477 National Oceanic and Atmospheric Administration	`3.29ms` from Ashburn, US
205.166.33.100	AS3477 National Oceanic and Atmospheric Administration	`32.49ms` from Ashburn, US
2601:a000:3::6	AS3477 National Oceanic and Atmospheric Administration	`0.65ms` from Denver, US
140.172.90.29	AS3477 National Oceanic and Atmospheric Administration	`0.51ms` from Denver, US
140.172.1.111	AS3477 National Oceanic and Atmospheric Administration	`1.70ms` 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
73.251.67.21	AS7922 Comcast Cable Communications, LLC	`8.75ms` from Ashburn, US
109.137.72.69	AS5432 Proximus NV	`1.02ms` from Brussels, BE
35.228.73.21	AS396982 Google LLC	`0.14ms` from Hamina, FI
188.59.40.5	AS16135 Turkcell A.S.	`16.49ms` from Istanbul, TR
83.206.133.85	AS3215 Orange S.A.	`1.23ms` from Lyon, FR
79.159.12.117	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.22ms` from Madrid, ES
165.161.6.5	AS394700 The School District of Palm Beach County	`2.21ms` from Miami, US
132.255.36.69	AS264455 STAR MAN NET PROVEDORA DE INTERNET LTDA - EPP	`1.63ms` from Osasco, BR
81.49.147.85	AS3215 Orange S.A.	`4.83ms` from Paris, FR
45.169.129.149	AS268114 THM Tecnologia Net Ltda	`7.83ms` from Rio de Janeiro, BR
23.60.177.37	AS16625 Akamai Technologies, Inc.	`0.10ms` from Toronto, CA
144.253.53.197	AS20115 Charter Communications LLC	`0.67ms` from Ashburn, US
50.204.247.101	AS7922 Comcast Cable Communications, LLC	`1.27ms` from Boston, US
182.74.119.37	AS9498 BHARTI Airtel Ltd.	`0.83ms` from Chennai, IN
74.129.138.21	AS10796 Charter Communications Inc	`12.13ms` from Cleveland, US
18.216.69.149	AS16509 Amazon.com, Inc.	`0.12ms` from Columbus, US
125.95.60.197	AS4134 CHINANET-BACKBONE	`2.73ms` from Guangzhou, CN
58.186.215.213	AS18403 FPT Telecom Company	`1.50ms` from Hanoi, VN
116.97.154.5	AS7552 Viettel Group	`4.11ms` from Hanoi, VN
31.126.204.21	AS2856 British Telecommunications PLC	`6.40ms` from London, GB
193.117.246.101	AS47474 Virtual1 Limited	`1.15ms` from London, GB
139.138.25.85	AS16417 Cisco Systems Ironport Division	`5.50ms` from Los Angeles, US
76.217.92.197	AS7018 AT&T Enterprises, LLC	`2.63ms` from Miami, US
194.105.48.5	AS12835 Trentino Digitale SPA	`4.14ms` from Milan, IT
73.65.104.245	AS7922 Comcast Cable Communications, LLC	`5.24ms` from Minneapolis, US

Traceroute

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

traceroute -a -n -q1 137.75.90.48

traceroute to 137.75.90.48 (137.75.90.48): 64 hops max, 52 byte packets

1 [AS31898] 140.204.222.128 0.089 ms

2 [AS31898] 129.213.6.94 3.971 ms

3 *

4 [AS11537] 163.253.1.132 3.298 ms

5 [AS11537] 163.253.1.119 2.667 ms

6 [AS10886] 206.196.177.74 2.407 ms

7 [AS10886] 206.196.191.143 1.59 ms

8 [AS10886] 206.196.177.197 1.585 ms

9 [AS3477] 140.208.253.6 2.206 ms

10 [AS3477] 140.172.71.250 2.43 ms

11 [AS3477] 140.208.255.101 2.367 ms

12 *

13 *

14 [AS3477] 137.75.90.48 3.202 ms

Measurement taken from

IPinfo ProbeNet in Ashburn, US

On January 19th 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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