AS number 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
Number of IPv4	322,816
Number of IPv6	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
137.75.84.0/22	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
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
2610:20:90e0::/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
137.75.111.173	██████████	1
140.172.190.1	██████████	1
205.156.8.170	██████████	1
140.90.193.57	██████████	1

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Hosted Domains API & Database

Peers

There are 14 peers for this ASN.

Peers	Name
AS10871	National Oceanic and Atmospheric Administration
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
AS7224	Amazon.com, Inc.

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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

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

IP Address	ASN	Details
192.94.173.2	AS3477 National Oceanic and Atmospheric Administration	`16.19ms` from Ashburn, US
137.75.109.17	AS3477 National Oceanic and Atmospheric Administration	`2.83ms` from Ashburn, US
140.172.1.111	AS3477 National Oceanic and Atmospheric Administration	`1.65ms` from Denver, US
140.172.12.69	AS3477 National Oceanic and Atmospheric Administration	`2.24ms` from Denver, US
140.90.76.193	AS3477 National Oceanic and Atmospheric Administration	`2.41ms` from Reston, US
137.75.91.238	AS3477 National Oceanic and Atmospheric Administration	`4.30ms` from Ashburn, US
137.75.225.1	AS3477 National Oceanic and Atmospheric Administration	`17.63ms` from Ashburn, US
137.75.118.1	AS3477 National Oceanic and Atmospheric Administration	`3.53ms` from Ashburn, US
137.75.88.129	AS3477 National Oceanic and Atmospheric Administration	`2.94ms` from Ashburn, US
140.172.90.31	AS3477 National Oceanic and Atmospheric Administration	`0.51ms` from Denver, US
140.172.96.10	AS3477 National Oceanic and Atmospheric Administration	`1.14ms` from Denver, US
140.172.139.54	AS3477 National Oceanic and Atmospheric Administration	`1.78ms` from Denver, US
140.172.225.13	AS3477 National Oceanic and Atmospheric Administration	`1.89ms` from Denver, US
2601:a008:1::1	AS3477 National Oceanic and Atmospheric Administration	`49.22ms` from Los Angeles, US
140.90.154.65	AS3477 National Oceanic and Atmospheric Administration	`2.85ms` from Reston, US
161.55.41.11	AS3477 National Oceanic and Atmospheric Administration	`0.94ms` from Seattle, US
161.55.85.36	AS3477 National Oceanic and Atmospheric Administration	`0.77ms` from Seattle, US
137.75.224.187	AS3477 National Oceanic and Atmospheric Administration	`19.75ms` from Ashburn, US
137.75.65.37	AS3477 National Oceanic and Atmospheric Administration	`39.06ms` from Council Bluffs, US
140.172.118.13	AS3477 National Oceanic and Atmospheric Administration	`2.13ms` from Denver, US
2601:a002:4:6776::1	AS3477 National Oceanic and Atmospheric Administration	`31.77ms` from Denver, US
140.172.119.12	AS3477 National Oceanic and Atmospheric Administration	`2.37ms` from Denver, US
140.172.86.73	AS3477 National Oceanic and Atmospheric Administration	`31.56ms` from Denver, US
2610:20:900c:3::2	AS3477 National Oceanic and Atmospheric Administration	`0.54ms` from Denver, US
140.90.119.58	AS3477 National Oceanic and Atmospheric Administration	`4.36ms` 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
72.70.64.21	AS701 Verizon Business	`2.29ms` from Boston, US
54.170.88.165	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
190.143.159.85	AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA	`0.95ms` from Guatemala City, GT
134.213.185.5	AS15395 Rackspace Ltd.	`1.26ms` from London, GB
52.144.82.69	AS5602 Retelit Digital Services S.p.A.	`2.72ms` from Milan, IT
213.208.175.181	AS8641 BACKBONE AS of Nauka-Svyaz	`1.51ms` from Moscow, RU
27.123.69.53	AS9498 BHARTI Airtel Ltd.	`0.77ms` from Mumbai, IN
60.83.121.53	AS17676 SoftBank Corp.	`3.56ms` from Osaka, JP
133.162.144.53	AS55386 FUJITSU LIMITED	`1.97ms` from Osaka, JP
139.103.157.53	AS611 NB-PEI Educational Computer Network	`18.80ms` from Quebec, CA
78.37.217.245	AS12389 PJSC Rostelecom	`1.72ms` from Saint Petersburg, RU
98.36.144.149	AS7922 Comcast Cable Communications, LLC	`9.26ms` from San Jose, US
184.69.14.165	AS6327 Shaw Communications	`2.50ms` from Seattle, US
219.248.196.69	AS9318 SK Broadband Co Ltd	`2.30ms` from Seoul, KR
192.121.31.213	AS12552 GlobalConnect AB	`0.89ms` from Stockholm, SE
197.9.242.149	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`17.23ms` from Tunis, TN
195.128.30.69	AS31604 Intertele S.A.	`6.13ms` from Warsaw, PL
52.83.112.85	AS135629 Ningxia West Cloud Data Technology Co.Ltd.	`0.53ms` from Zhongwei, CN
202.8.84.53	AS23884 Proen Corp Public Company Limited.	`0.55ms` from Bangkok, TH
178.223.134.197	AS8400 TELEKOM SRBIJA a.d.	`6.70ms` from Belgrade, RS
100.21.217.69	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
203.36.75.133	AS1221 Telstra Limited	`3.89ms` from Brisbane, AU
109.147.12.69	AS2856 British Telecommunications PLC	`2.83ms` from London, GB
99.45.78.5	AS7018 AT&T Enterprises, LLC	`18.51ms` from Miami, US
90.3.107.37	AS3215 Orange S.A.	`2.12ms` from Paris, FR

Traceroute

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

traceroute -a -n -q1 -m5 155.206.57.150

traceroute to 155.206.57.150 (155.206.57.150): 5 hops max, 52 byte packets

1 [AS209847] 2.56.177.1 1.182 ms

2 [AS200590] 5.188.152.1 1.984 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Almaty, KZ

On November 22nd 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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