Home Prefix Lookup177.5.56.0/21

177.5.56.0/21 - BGP Prefix

IPv4APNICassigned RPKI Valid

CIDR

177.5.56.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇺🇸 United States

City

Los Angeles

RIR

APNIC

Status

assigned

Allocated

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

Related Announcements

2 less-specific, 10 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
177.5.48.0/20	AS8796 FD-298-8796 - FASTNET DATA INC	Valid	-	2026-10-11
177.5.48.0/20	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
177.5.56.0/22	AS8796 FD-298-8796 - FASTNET DATA INC	Valid	-	2026-10-11
177.5.56.0/22	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
177.5.56.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
177.5.57.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
177.5.58.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
177.5.59.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
177.5.60.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
177.5.61.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
177.5.62.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11
177.5.63.0/24	AS140227 HKCICL-AS-AP Hong Kong Communications International Co., Limited	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
177.5.48.0/20	AS8796	/24	apnic
177.5.48.0/20	AS40115	/24	apnic
177.5.48.0/20	AS140227	/24	apnic
177.5.48.0/20	AS395886	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS8796	APNIC	MAINT-CTCSCITECHLIMITED-HK	2026-07-17
AS40115	APNIC	MAINT-CTCSCITECHLIMITED-HK	2026-07-17
AS140227	APNIC	MAINT-CTCSCITECHLIMITED-HK	2026-07-17
AS395886	APNIC	MAINT-CTCSCITECHLIMITED-HK	2026-07-17

Transfer History

Registry transfers of 177.5.56.0/21, blocks inside it, or blocks containing it.

177.5.48.0/20inter-RIRTransfer · 2026-05-13
Globenet Cabos Submarinos America Inc.
🇺🇸 US ARIN
→
CTCSCI TECH LIMITED
🇭🇰 HK APNIC
177.5.48.0/20inter-RIRTransfer · 2025-02-20
V.TAL - REDE NEUTRA DE TELECOMUNICACOES S.A.
🇧🇷 BR LACNIC
→
GLOBENET CABOS SUBMARINOS AMERICA INC.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2026-05-13	177.5.48.0/20inter-RIR	Globenet Cabos Submarinos America Inc. 🇺🇸 US ARIN	CTCSCI TECH LIMITED 🇭🇰 HK APNIC	Transfer
2025-02-20	177.5.48.0/20inter-RIR	V.TAL - REDE NEUTRA DE TELECOMUNICACOES S.A. 🇧🇷 BR LACNIC	GLOBENET CABOS SUBMARINOS AMERICA INC. 🇺🇸 US ARIN	Transfer

Related Prefixes

Covering prefix

177.5.48.0/20AS8796

Geolocation

Country🇺🇸United StatesUS

CityLos Angeles

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/177.5.56.0/21

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/177.5.56.0/21" | jq

External Links

RIPEstat