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
140.90.54.38	██████████	1
137.75.121.228	██████████	1
137.75.121.202	██████████	1
137.75.111.173	██████████	1
140.90.193.57	██████████	1
137.75.101.20	██████████	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

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

IP Address	ASN	Details
137.75.108.145	AS3477 National Oceanic and Atmospheric Administration	`3.14ms` from Ashburn, US
192.94.173.55	AS3477 National Oceanic and Atmospheric Administration	`16.71ms` from Ashburn, US
2610:20:9008:1::2	AS3477 National Oceanic and Atmospheric Administration	`35.91ms` from Ashburn, US
2620:12e:b000::	AS3477 National Oceanic and Atmospheric Administration	`9.27ms` from Ashburn, US
2601:a000:3::2	AS3477 National Oceanic and Atmospheric Administration	`0.88ms` from Denver, US
140.172.253.1	AS3477 National Oceanic and Atmospheric Administration	`1.70ms` from Denver, US
140.172.244.151	AS3477 National Oceanic and Atmospheric Administration	`1.97ms` from Denver, US
140.172.188.2	AS3477 National Oceanic and Atmospheric Administration	`2.18ms` from Denver, US
140.172.138.179	AS3477 National Oceanic and Atmospheric Administration	`2.28ms` from Denver, US
2601:a008:0:1::5	AS3477 National Oceanic and Atmospheric Administration	`51.41ms` from Los Angeles, US
205.156.7.70	AS3477 National Oceanic and Atmospheric Administration	`2.27ms` from Reston, US
140.90.69.198	AS3477 National Oceanic and Atmospheric Administration	`2.65ms` from Reston, US
205.156.25.30	AS3477 National Oceanic and Atmospheric Administration	`2.76ms` from Reston, US
205.156.4.138	AS3477 National Oceanic and Atmospheric Administration	`4.57ms` from Reston, US
205.156.8.225	AS3477 National Oceanic and Atmospheric Administration	`3.56ms` from Ashburn, US
137.75.73.101	AS3477 National Oceanic and Atmospheric Administration	`0.73ms` from Denver, US
2601:a000:1::6:37	AS3477 National Oceanic and Atmospheric Administration	`1.77ms` from Denver, US
140.172.192.212	AS3477 National Oceanic and Atmospheric Administration	`1.76ms` from Denver, US
140.172.144.1	AS3477 National Oceanic and Atmospheric Administration	`2.65ms` from Denver, US
140.90.119.57	AS3477 National Oceanic and Atmospheric Administration	`4.82ms` from Reston, US
161.55.16.4	AS3477 National Oceanic and Atmospheric Administration	`0.84ms` from Seattle, US
155.206.139.160	AS3477 National Oceanic and Atmospheric Administration	`2.90ms` from Ashburn, US
137.75.110.225	AS3477 National Oceanic and Atmospheric Administration	`3.23ms` from Ashburn, US
140.172.33.254	AS3477 National Oceanic and Atmospheric Administration	`1.72ms` from Denver, US
140.90.159.1	AS3477 National Oceanic and Atmospheric Administration	`2.87ms` from Reston, 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
34.205.90.213	AS14618 Amazon.com, Inc.	`0.96ms` from Ashburn, US
130.75.78.229	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`5.04ms` from Berlin, DE
18.7.97.5	AS3 Massachusetts Institute of Technology	`0.43ms` from Boston, US
201.177.246.213	AS22927 Telefonica de Argentina	`1.84ms` from Buenos Aires, AR
67.197.75.213	AS14615 Comporium, Inc	`1.50ms` from Charlotte, US
87.162.151.197	AS3320 Deutsche Telekom AG	`6.04ms` from Duesseldorf, DE
180.252.37.53	AS7713 PT Telekomunikasi Indonesia	`1.33ms` from Jakarta, ID
46.245.254.197	AS31463 Redcentric Solutions Ltd	`2.14ms` from London, GB
104.83.13.197	AS16625 Akamai Technologies, Inc.	`0.09ms` from Madrid, ES
50.31.238.133	AS30081 CacheFly	`0.07ms` from Madrid, ES
45.82.135.245	AS202709 Netoip.com srl	`0.08ms` from Milan, IT
213.208.175.181	AS8641 BACKBONE AS of Nauka-Svyaz	`1.55ms` from Moscow, RU
96.240.8.53	AS701 Verizon Business	`1.84ms` from New York City, US
153.179.189.101	AS4713 NTT DOCOMO BUSINESS,Inc.	`15.97ms` from Osaka, JP
195.88.114.5	AS48956 HyperNET sp. z o.o.	`7.43ms` from Poznan, PL
118.160.63.101	AS3462 Data Communication Business Group	`1.27ms` from Taipei, TW
45.31.184.37	AS7018 AT&T Enterprises, LLC	`8.65ms` from Atlanta, US
125.34.208.5	AS4808 China Unicom Beijing Province Network	`3.19ms` from Beijing, CN
54.186.133.69	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
109.96.60.117	AS9050 Orange Romania S.A.	`0.54ms` from Bucharest, RO
207.106.206.213	AS7029 Windstream Communications LLC	`0.53ms` from Chicago, US
36.138.38.5	AS9808 China Mobile Communications Group Co., Ltd.	`0.59ms` from Chongqing, CN
121.14.206.101	AS4134 CHINANET-BACKBONE	`1.56ms` from Guangzhou, CN
185.251.35.21	AS198325 Yeni Telekom Internet Hizmetleri Ltd. Sirketi	`11.23ms` from Istanbul, TR
196.25.120.21	AS5713 Telkom SA Ltd.	`0.61ms` from Johannesburg, ZA

Traceroute

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

traceroute -a -n -q1 -m5 155.206.219.154

traceroute to 155.206.219.154 (155.206.219.154): 5 hops max, 52 byte packets

1 [AS208450] 45.136.59.1 10.464 ms

2 [AS41371] 88.151.180.149 0.496 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Aktau, KZ

On December 28th 2025

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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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