Autonomous System details

AS19577

CASTRO TELECOM LLC  ·  ulisboa.pt

United States
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AS19577 – CASTRO TELECOM LLC

Field Value
Country United States
Website ulisboa.pt
Hosted domains 20
IPv4 addresses 1,280
IPv6 addresses 79,228,162,514,264,337,593,543,950,336
ASN type Hosting
Registry arin
Allocated 2 years ago on Jun 14, 2024
Updated a year ago on Feb 26, 2025

IP Ranges

Netblock Company Num of IPs
208.85.8.0/22 CASTRO TELECOM LLC 1,024
23.147.168.0/24 CASTRO TELECOM LLC 256
Netblock Company
2602:faa5::/32 CASTRO TELECOM LLC
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WHOIS Details

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                                                ASHandle:       AS19577
                                                OrgID:          AS19577
                                                ASName:         AS19577
                                                ASNumber:       AS19577
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 20 domain names hosted across 5 IP addresses on this ASN.

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IP Address Domain Domains on this IP
23.147.168.185 ██████████ 10
23.147.168.130 ██████████ 5
23.147.168.3 █████████ 3
23.147.168.200 ██████████ 1
23.147.168.182 ██████████ 1

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Peers

There is 1 peer for this ASN.

Peers Name
AS200454 Tomas Oliveira Valente Leite de Castro
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS200454 Tomas Oliveira Valente Leite de Castro
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
208.85.11.1 AS19577 CASTRO TELECOM LLC 0.23ms from Kansas City, US
23.147.168.62 AS19577 CASTRO TELECOM LLC 0.23ms from Kansas City, US
2602:faa5:: AS19577 CASTRO TELECOM LLC 0.40ms from Kansas City, 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
77.163.201.121 AS1136 KPN B.V. 1.65ms from Amsterdam, NL
178.93.1.25 AS2914 NTT America, Inc. 0.20ms from Ashburn, US
186.248.212.201 AS23106 AMERICAN TOWER DO BRASIL-COMUNICAÇÂO MULTIMÍDIA LT 12.65ms from Belo Horizonte, BR
200.91.205.121 AS18747 IFX Corporation 0.46ms from Bogotá, CO
72.230.182.153 AS11351 Charter Communications Inc 17.43ms from Chicago, US
217.160.31.9 AS8560 IONOS SE 2.26ms from Frankfurt am Main, DE
66.249.97.25 AS22442 Phonoscope, Inc. 1.67ms from Houston, US
122.176.253.121 AS24560 Bharti Airtel Ltd., Telemedia Services 2.17ms from Hyderabad, IN
89.187.86.105 AS31708 Coreix Ltd 0.62ms from London, GB
185.90.142.25 AS39767 Sargasso N1 Limited 0.47ms from London, GB
76.53.225.153 AS20001 Charter Communications Inc 2.62ms from Los Angeles, US
172.102.92.201 AS5650 Frontier Communications of America, Inc. 0.59ms from Los Angeles, US
84.121.170.57 AS6739 VODAFONE ONO, S.A. 9.82ms from Madrid, ES
60.240.226.121 AS7545 TPG Telecom Limited 0.59ms from Melbourne, AU
213.32.216.121 AS44513 Optima Italia S.p.A. 1.39ms from Milan, IT
95.156.79.217 AS12389 PJSC Rostelecom 0.26ms from Novosibirsk, RU
203.18.254.57 AS24315 Ciphertel Pty Ltd 3.42ms from Perth, AU
54.176.60.217 AS16509 Amazon.com, Inc. 0.15ms from San Jose, US
20.24.9.89 AS8075 Microsoft Corporation 0.60ms from Singapore, SG
97.91.218.41 AS20115 Charter Communications LLC 9.68ms from St. Louis, US
37.131.224.25 AS44327 DELTA COMM LLC 1.13ms from Tbilisi, GE
216.191.13.217 AS6461 Zayo Bandwidth 0.36ms from Toronto, CA
24.86.157.105 AS6327 Shaw Communications 9.21ms from Vancouver, CA
79.187.251.25 AS5617 Orange Polska Spolka Akcyjna 5.94ms from Warsaw, PL
195.97.99.121 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 0.96ms from Athens, GR

Related Networks

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 AS19577 at robtex.

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