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 1,024
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
23.147.168.182 ██████████ 1
23.147.168.200 ██████████ 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

2 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 0.21ms from Kansas City, US
208.85.8.103 AS19577 CASTRO TELECOM LLC 0.31ms 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
149.210.163.105 AS20857 Signet B.V. 0.56ms from Amsterdam, NL
65.243.98.201 AS701 Verizon Business 1.35ms from Atlanta, US
66.31.123.217 AS7922 Comcast Cable Communications, LLC 5.49ms from Boston, US
96.190.175.201 AS53297 Comcast Cable Communications, LLC 0.05ms from Chicago, US
123.146.249.9 AS4837 CHINA UNICOM China169 Backbone 0.95ms from Chongqing, CN
14.224.228.121 AS45899 VNPT Corp 0.68ms from Da Nang, VN
115.68.51.233 AS38700 SMILESERV 1.22ms from Incheon, KR
23.215.208.121 AS25019 Saudi Telecom Company JSC 3.09ms from Jeddah, SA
76.81.245.25 AS20001 Charter Communications Inc 0.65ms from Los Angeles, US
209.203.107.233 AS3549 Level 3 Parent, LLC 1.99ms from Los Angeles, US
47.44.65.201 AS20115 Charter Communications LLC 0.81ms from Milwaukee, US
151.249.240.57 AS42772 Unitary enterprise A1 0.46ms from Minsk, BY
222.83.227.25 AS4134 CHINANET-BACKBONE 2.27ms from Nanning, CN
89.43.153.137 AS212041 AIRMOB INFRA FULL SASU 10.72ms from Paris, FR
212.109.181.25 AS30764 PODA a.s. 3.12ms from Prague, CZ
44.207.102.9 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
34.205.153.185 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
200.144.114.9 AS1916 Rede Nacional de Ensino e Pesquisa 2.87ms from Sao Paulo, BR
1.255.2.169 AS9318 SK Broadband Co Ltd 1.34ms from Seoul, KR
42.82.205.73 AS9770 LG HelloVision Corp. 8.29ms from Seoul, KR
106.14.223.89 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.80ms from Shanghai, CN
96.3.39.249 AS11232 Midcontinent Communications 10.13ms from Sioux Falls, US
1.162.177.217 AS3462 Data Communication Business Group 1.38ms from Taipei, TW
24.244.60.249 AS6327 Shaw Communications 0.77ms from Winnipeg, CA
87.193.247.105 AS20676 Plusnet GmbH 1.54ms from Berlin, DE

Traceroute

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

$
traceroute -a -n -q1 208.85.11.64
traceroute to 208.85.11.64 (208.85.11.64): 64 hops max, 52 byte packets
2 *
3 [AS174] 154.24.26.134 1.459 ms
4 [AS174] 38.140.137.171 0.358 ms
5 [AS12186] 192.189.65.1 0.311 ms
7 [AS19577] 208.85.11.64 0.455 ms
Measurement taken from IPinfo ProbeNet in Kansas City, US
On

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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