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ASN Lookup Tool
AS19577 CASTRO-TELECOM

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS19577
Organisation
CASTRO TELECOM LLC
Name
CASTRO-TELECOM
Total IPv4 Addresses
768
Total IPv4 Prefixes
2
Total IPv6 Prefixes
17
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#43,531 out of 79,147
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
Registration Last Change
2025-02-27
Receiving From
ASN
Organisation
AS6939
US flagHurricane Electric LLC
AS36236
US flagNetActuate, Inc
AS200454
PT flagTomas Oliveira Valente Leite de Castro
AS12186
US flagGVVME
IPv4 Active Prefixes
PrefixRange FromRange To
23.147.168.0/2423.147.168.023.147.168.255
208.85.10.0/23208.85.10.0208.85.11.255
IPv6 Active Prefixes
PrefixRange FromRange To
2602:faa5::/372602:faa5::2602:faa5:7ff:ffff:ffff:ffff:ffff:ffff
2602:faa5:800::/382602:faa5:800::2602:faa5:bff:ffff:ffff:ffff:ffff:ffff
2602:faa5:c00::/392602:faa5:c00::2602:faa5:dff:ffff:ffff:ffff:ffff:ffff
2602:faa5:e00::/402602:faa5:e00::2602:faa5:eff:ffff:ffff:ffff:ffff:ffff
2602:faa5:f00::/482602:faa5:f00::2602:faa5:f00:ffff:ffff:ffff:ffff:ffff
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