If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	37.202.48.0/24	3C1B DC Sunucular IP Blogu
	37.202.48.0/21	3C1B Telekomunikasyon ve Internet Hiz. San. ve Tic. A.S.
	37.202.49.0/24	-
	37.202.50.0/24	3C1B Telekomunikasyon ve Internet Hiz. San. ve Tic. A.S.
	37.202.51.0/24	3C1B Telekomunikasyon ve Internet Hiz. San. ve Tic. A.S.
	37.202.52.0/24	Dia Yazilim A.S
	37.202.53.0/24	CUSTOMER SIDE METRO ETHERNET IP BLOCK
	37.202.54.0/24	Wireless Network
	37.202.55.0/24	3C1B Telekomunikasyon ve Internet Hiz. San. ve Tic. A.S.
	178.251.40.0/21	3c1b Customer Networks
	178.251.40.0/24	3c1b Customer Networks
	178.251.41.0/24	3c1b Local Network
	178.251.42.0/24	3c1b Customer Networks
	178.251.43.0/24	3c1b Customer Networks
	178.251.44.0/24	3c1b Customer Networks
	178.251.45.0/24	PPPOE Static IP Pool
	178.251.46.0/24	3c1b Customer Networks
	178.251.47.0/24	3c1b Customer Networks

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Network Policy

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Prefixes in selected policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications	✔	✘
	AS12735	TurkNet Iletisim Hizmetleri A.S.	✔	✘
	AS34984	Superonline Iletisim Hizmetleri A.S.	✔	✘
	AS15924	Vodafone Turkey	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications	✔	✘
	AS12735	TurkNet Iletisim Hizmetleri A.S.	✔	✘
	AS34984	Superonline Iletisim Hizmetleri A.S.	✔	✘
	AS47288	FIXNET Telekomunikasyon Limited Sirketi	✔	✘
	AS47894	VERITEKNIK BILISIM BASIN VE YAYIN LIMITED SIRKETI	✔	✘
	AS13335	Cloudflare, Inc.	✔	✘
	AS15924	Vodafone Turkey	✔	✘
	AS6939	Hurricane Electric LLC	✔	✘
	AS8075	Microsoft Corporation	✔	✘
	AS214823	NOVA HOSTING VE BILISIM TEKNOLOJILERI A.S.	✔	✘
	AS211961	HEDEF GLOBAL BILISIM TEKNOLOJILERI SANAYI TICARET LIM...	✔	✘
	AS213945	DATA HOME YAZILIM BILGI TEKNOLOJILERI TICARET LIMITED...	✔	✘
	AS8517	National Academic Network and Information Center	✔	✘
	AS43391	Netdirekt A.S.	✔	✘
	AS204457	Atlantis Telekomunikasyon Bilisim Hizmetleri San. Tic. Ltd	✔	✘
	AS29399	Ramtek Telekomunikasyon Hizmetleri Sanayi Ve Ticaret ...	✔	✘
	AS209275	NETMAX TELEKOMUNIKASYON ILETISIM HIZMETLERI TICARET L...	✔	✘
	AS60707	Kapteyan Bilisim Teknolojileri Sanayi ve Ticaret A.S	✔	✘
	AS48678	PENTECH BILISIM TEKNOLOJILERI SANAYI VE TICARET LIMIT...	✔	✘
	AS25091	IP-Max SA	✔	✘
	AS1239	Sprint Wireline (Cogent)	✔	✘
	AS208821	DURU INTERNET VE BILISIM TEKNOLOJILERI SANAYI TICARET...	✔	✘
	AS21245	MEDIANOVA INTERNET HIZMETLERI VE TICARET ANONIM SIRKETI	✔	✘
	AS51531	DE-CIX Management GmbH	✔	✘
	AS199524	Gcore S.A.	✔	✘
	AS6663	Türk Telekom International	✔	✘

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Downstreams

	ASN	Description	IPv4	IPv6
	AS47894	VERITEKNIK BILISIM BASIN VE YAYIN LIMITED SIRKETI	✔	✘
	AS214823	NOVA HOSTING VE BILISIM TEKNOLOJILERI A.S.	✔	✘
	AS213945	DATA HOME YAZILIM BILGI TEKNOLOJILERI TICARET LIMITED...	✔	✘
	AS211961	HEDEF GLOBAL BILISIM TEKNOLOJILERI SANAYI TICARET LIM...	✔	✘

aut-num:        AS6823
as-name:        TR-3C1B-TELEKOM
org:            ORG-TvIH1-RIPE
import:         from AS-ANY accept ANY
export:         to AS-ANY announce AS-3C1B
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
notify:         network@3c1b.net
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         mnt-3c1b
created:        2011-04-01T12:06:28Z
last-modified:  2024-02-27T07:42:06Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************


organisation:   ORG-TvIH1-RIPE
org-name:       3C1B Telekomunikasyon ve Internet Hiz. San. ve Tic. A.S.
country:        TR
org-type:       LIR
address:        Dummy address for ORG-TvIH1-RIPE
e-mail:         unread@ripe.net
abuse-c:        ck3267-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        mnt-3c1b
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         mnt-3c1b
created:        2010-04-26T10:40:08Z
last-modified:  2023-08-29T10:59:24Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Last Update: 2025-04-13T03:25:26Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-turknettr	4746
RIPE	as-3c1b	20
RIPE	as6205:as-hizlinet	84
RIPE	as-netinternet	40
RIPE	as214941:as-upcell	14
RIPE	as-gibirnet-int	4746
RIPE	as34984:as-tellcom	39509
RIPE	as-stormwall-set	10219
RIPE	as-teknet	84
RIPE	as59510:as-gibirix	4750
RIPE	as-ttnet	36404
RIPE	as-viva-tr	15
RIPE	as20715:as-decix-ist-connected	65
RIPE	as20715:as-decix-ist-rs	64
RIPE	as20715:as-decix-ist-rs-v6	64
RIPE	as-retn-actual-v4	11486
RIPE	as-btelekom	689