161.55.56.0/23

AS3477 · National Oceanic and Atmospheric Administration

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Summary

Country	United States
Domain	noaa.gov
ASN	AS3477
Parent Range	161.55.0.0/16
Registry	ARIN
ID	NOAA-WEST1

WHOIS Details

NetHandle:      NET-161-55-0-0-1
OrgID:          NOAABO-Z
Parent:         NET-161-0-0-0-0
NetName:        NOAA-WEST1
NetRange:       161.55.0.0 - 161.55.255.255
NetType:        allocation
RegDate:        1992-06-01
Updated:        2023-06-05
Source:         ARIN


OrgID:          NOAABO-Z
OrgName:        National Oceanic and Atmospheric Administration
CanAllocate:    
Street:         325 Broadway
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80305
RegDate:        2020-08-25
Updated:        2020-08-25
OrgAdminHandle: NAA38-ARIN
OrgTechHandle:  NAT41-ARIN
OrgAbuseHandle: NAA40-ARIN
Source:         ARIN


POCHandle:      NAA38-ARIN
IsRole:         Y
LastName:       N-Wave ARIN Admin
FirstName:      
Street:         325 Broadway
Street:         NWAVE
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80305
RegDate:        2020-07-02
Updated:        2025-07-08
OfficePhone:    +1-812-856-7477
Mailbox:        nwave-arin-admin@noaa.gov
Source:         ARIN


POCHandle:      NAT41-ARIN
IsRole:         Y
LastName:       N-Wave ARIN Tech
FirstName:      
Street:         325 Broadway
Street:         NWAVE
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80305
RegDate:        2020-07-08
Updated:        2025-07-08
OfficePhone:    +1-812-856-7477
Mailbox:        nwave-arin-tech@noaa.gov
Source:         ARIN


POCHandle:      NAA40-ARIN
IsRole:         Y
LastName:       N-Wave ARIN Abuse
FirstName:      
Street:         325 Broadway
Street:         NWAVE
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80305
RegDate:        2020-07-08
Updated:        2025-07-08
OfficePhone:    +1-812-856-7477
Mailbox:        nwave-arin-abuse@noaa.gov
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 161.55.56.0/23

Range	ASN	Company	Num of IPs
161.55.0.0/16	AS3477	National Oceanic and Atmospheric Administration	65,536

Nearby Ranges

BGP prefixes that overlap with 161.55.0.0/16

Range	ASN	Company	Num of IPs
161.55.0.0/16	AS3477	National Oceanic and Atmospheric Administration	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
185.71.49.55	AS42808 NTT Global Networks Incorporated	`0.85ms` from Amsterdam, NL
24.182.77.167	AS20115 Charter Communications LLC	`9.97ms` from Atlanta, US
168.8.172.7	AS3480 Board of Regents of the University System of Georgia	`2.31ms` from Atlanta, US
98.20.166.231	AS7029 Windstream Communications LLC	`6.80ms` from Atlanta, US
197.50.8.215	AS8452 TE-AS	`5.57ms` from Cairo, EG
68.145.145.87	AS6327 Shaw Communications	`3.63ms` from Calgary, CA
161.254.10.135	AS25667 Home Shopping Network	`9.50ms` from Chicago, US
95.201.9.55	AS3301 Telia Company AB	`12.54ms` from Copenhagen, DK
64.92.37.7	AS6300 Fidium	`8.94ms` from Dallas, US
99.39.157.135	AS7018 AT&T Enterprises, LLC	`12.26ms` from Dallas, US
109.104.188.199	AS31272 WildPark Co	`8.81ms` from Kyiv, UA
66.108.25.71	AS12271 Charter Communications Inc	`4.57ms` from New York City, US
94.131.66.199	AS53856 NJ IX	`0.94ms` from New York City, US
69.114.45.87	AS6128 Cablevision Systems Corp.	`5.98ms` from New York City, US
111.96.71.7	AS2516 KDDI CORPORATION	`9.89ms` from Osaka, JP
153.144.192.231	AS4713 NTT DOCOMO BUSINESS,Inc.	`16.04ms` from Tokyo, JP
174.102.79.135	AS10796 Charter Communications Inc	`12.07ms` from Columbus, US
34.46.197.183	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
20.244.99.167	AS8075 Microsoft Corporation	`0.23ms` from Lohogaon, IN
18.134.151.247	AS16509 Amazon.com, Inc.	`0.17ms` from London, GB
123.100.193.39	AS9614 Oita Cable Telecom Co,ltd.	`11.27ms` from Osaka, JP
54.233.160.103	AS16509 Amazon.com, Inc.	`0.15ms` from Osasco, BR
81.254.156.39	AS3215 Orange S.A.	`6.54ms` from Paris, FR
100.55.213.7	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
106.14.188.87	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.72ms` from Shanghai, CN

Traceroute

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

traceroute -a -n -q1 -f2 -m6 161.55.57.73

traceroute to 161.55.57.73 (161.55.57.73): 6 hops max, 52 byte packets

2 [AS197019] 46.28.104.36 410.9 ms

3 [AS42000] 185.99.68.241 3.818 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Ceske Budejovice, CZ

On April 13th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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