129.19.154.0/24

AS401317 · Boulder Public Library District

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	United States
Domain	boulderlibrary.org
ASN	AS401317
Registry	ARIN
ID	WESTNET-BPLD-01

WHOIS Details

NetHandle:      NET-129-19-154-0-1
OrgID:          BPLD-4
Parent:         NET-129-19-128-0-1
NetName:        WESTNET-BPLD-01
NetRange:       129.19.154.0 - 129.19.154.255
NetType:        reassignment
OriginAS:       401317
Comment:        Boulder Public Library District
Comment:        https://boulderlibrary.org
RegDate:        2024-08-29
Updated:        2024-08-29
Source:         ARIN


OrgID:          BPLD-4
OrgName:        Boulder Public Library District
CanAllocate:    
Street:         1001 Arapahoe Ave
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80302
RegDate:        2024-06-26
Updated:        2024-08-09
OrgAdminHandle: BPLDN-ARIN
OrgTechHandle:  BPLDN-ARIN
OrgAbuseHandle: ABUSE9019-ARIN
Source:         ARIN


POCHandle:      BPLDN-ARIN
IsRole:         Y
LastName:       bpldnetworkadministrator
FirstName:      
Street:         1001 Arapahoe Ave
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80302
RegDate:        2024-06-26
Updated:        2025-06-26
OfficePhone:    +1-983-888-0599
Mailbox:        net-admin@boulderlibrary.org
Source:         ARIN


POCHandle:      ABUSE9019-ARIN
IsRole:         Y
LastName:       AbuseAdmin
FirstName:      
Street:         1001 Arapahoe Ave
City:           Boulder
State/Prov:     CO
Country:        US
PostalCode:     80302
RegDate:        2024-05-09
Updated:        2024-05-09
OfficePhone:    +1-983-888-0599
Mailbox:        Abuse@boulderlibrary.org
Source:         ARIN

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

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

IP Address	ASN	Details
129.19.154.254	AS401317 Boulder Public Library District	`1.43ms` 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
141.216.126.8	AS394769 University of Michigan - Flint	`2.40ms` from Detroit, US
138.128.199.136	AS25820 IT7 Networks Inc	`0.33ms` from Fremont, US
149.62.105.200	AS2107 ARNES	`0.86ms` from Ljubljana, SI
84.78.185.184	AS12479 Orange Espagne SA	`1.56ms` from Madrid, ES
188.172.182.104	AS136787 PacketHub S.A.	`0.36ms` from New York City, US
177.99.235.40	AS18881 TELEFÔNICA BRASIL S.A	`1.22ms` from Rio de Janeiro, BR
14.71.200.216	AS4766 Korea Telecom	`1.54ms` from Seoul, KR
121.128.92.200	AS4766 Korea Telecom	`1.30ms` from Seoul, KR
85.226.42.248	AS2119 Telenor Norge AS	`4.12ms` from Stockholm, SE
153.215.160.248	AS4713 NTT Communications Corporation	`9.72ms` from Tokyo, JP
109.191.84.72	AS8369 Intersvyaz-2 JSC	`4.33ms` from Yekaterinburg, RU
156.215.232.168	AS8452 TE-AS	`4.99ms` from Cairo, EG
75.134.126.216	AS20115 Charter Communications LLC	`8.62ms` from Chicago, US
97.223.121.40	AS6167 Verizon Business	`10.66ms` from Chicago, US
207.229.15.200	AS852 TELUS Communications Inc.	`0.59ms` from Edmonton, CA
160.30.18.248	AS149107 TRUMVPS COMPANY LIMITED	`0.23ms` from Hanoi, VN
20.162.134.40	AS8075 Microsoft Corporation	`0.21ms` from London, GB
94.156.53.8	AS210218 Open Fiber S.P.A.	`1.11ms` from Milan, IT
120.209.127.40	AS9808 China Mobile Communications Group Co., Ltd.	`7.13ms` from Nanjing, CN
177.71.137.136	AS16509 Amazon.com, Inc.	`0.13ms` from Osasco, BR
54.232.122.248	AS16509 Amazon.com, Inc.	`0.14ms` from Osasco, BR
35.172.198.56	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
13.49.157.232	AS16509 Amazon.com, Inc.	`0.14ms` from Stockholm, SE
35.77.221.88	AS16509 Amazon.com, Inc.	`1.09ms` from Tokyo, JP
20.229.52.120	AS8075 Microsoft Corporation	`0.23ms` from Amsterdam, NL

Traceroute

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

traceroute -a -n -q1 129.19.154.254

traceroute to 129.19.154.254 (129.19.154.254): 64 hops max, 52 byte packets

1 [AS63023] 69.50.92.1 0.252 ms

2 *

3 [] 206.53.175.22 0.786 ms

4 [AS14041] 192.43.217.158 1.539 ms

5 [AS401317] 129.19.154.254 1.447 ms

Measurement taken from

IPinfo ProbeNet in Denver, US

On August 28th 2025

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales