151.251.64.0/23

AS42157 · A1 Bulgaria EAD

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Summary

Country	Bulgaria
Domain	a1.bg
ASN	AS42157
Parent Range	151.251.0.0/16
Registry	RIPE
ID	A1-IXP

WHOIS Details

inetnum:        151.251.64.0 - 151.251.65.255
netname:        A1-IXP
country:        BG
admin-c:        SSS126-RIPE
tech-c:         SSS126-RIPE
status:         ASSIGNED PA
mnt-by:         SPNET-MNT
mnt-by:         AS12716-MNT
mnt-by:         ROUTE-12716-MNT
mnt-by:         AS13124-MNT
created:        2021-09-28T07:58:46Z
last-modified:  2021-09-28T07:58:46Z
source:         RIPE
abuse-email:    RIPE.Abuse@a1.bg
abuse-c:        AR14215-RIPE
abuse-org:      ORG-MN1-RIPE

person:         Stoyan Stoyanov
org:            ORG-IL1-RIPE
address:        Bulgaria, Sofia, 1 Kukush street, area Ilinden, building M7
mnt-by:         AS13124-MNT
phone:          +359 88220
e-mail:         ripe.abuse@a1.bg
nic-hdl:        SSS126-RIPE
created:        2008-10-29T08:24:20Z
last-modified:  2022-01-11T06:27:12Z
source:         RIPE

route:          151.251.64.0/23
origin:         AS42157
descr:          IXP
mnt-by:         ORBITEL-NOC
mnt-by:         SPNET-MNT
mnt-by:         AS12716-MNT
mnt-by:         ROUTE-12716-MNT
created:        2021-09-28T08:00:35Z
last-modified:  2021-09-28T08:00:57Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 151.251.64.0/23

Range	ASN	Company	Num of IPs
151.251.0.0/16	AS12716	A1 Bulgaria EAD	65,536
151.251.0.0/16	AS8717	A1 Bulgaria EAD	65,536

Nearby Ranges

BGP prefixes that overlap with 151.251.0.0/16

Range	ASN	Company	Num of IPs
151.251.0.0/16	AS12716	A1 Bulgaria EAD	65,536
151.251.0.0/16	AS8717	A1 Bulgaria EAD	65,536
151.251.48.0/21	AS13124	A1 Bulgaria EAD	2,048
151.251.192.0/22	AS12716	A1 Bulgaria EAD	1,024
151.251.68.0/22	AS12716	A1 Bulgaria EAD	1,024
151.251.56.0/22	AS197050	A1 Bulgaria EAD	1,024
151.251.44.0/22	AS12716	A1 Bulgaria EAD	1,024
151.251.66.0/23	AS210646	A1 Bulgaria EAD	512
151.251.126.0/23	AS12716	A1_BG_GPRS_Net	512
151.251.102.0/24	AS29580	A1 Bulgaria EAD	256
151.251.103.0/24	AS29580	A1 Bulgaria EAD	256
151.251.104.0/24	AS29580	A1 Bulgaria EAD	256
151.251.105.0/24	AS29580	A1 Bulgaria EAD	256
151.251.106.0/24	AS29580	A1 Bulgaria EAD	256
151.251.107.0/24	AS29580	A1 Bulgaria EAD	256
151.251.108.0/24	AS29580	A1 Bulgaria EAD	256
151.251.109.0/24	AS29580	A1 Bulgaria EAD	256
151.251.110.0/24	AS29580	A1 Bulgaria EAD	256
151.251.111.0/24	AS29580	A1 Bulgaria EAD	256
151.251.112.0/24	AS29580	A1 Bulgaria EAD	256
151.251.113.0/24	AS29580	A1 Bulgaria EAD	256
151.251.114.0/24	AS29580	A1 Bulgaria EAD	256
151.251.115.0/24	AS29580	A1 Bulgaria EAD	256
151.251.116.0/24	AS29580	A1 Bulgaria EAD	256
151.251.117.0/24	AS29580	A1 Bulgaria EAD	256
151.251.118.0/24	AS29580	A1 Bulgaria EAD	256
151.251.122.0/24	AS29580	A1 Bulgaria EAD	256
151.251.123.0/24	AS29580	A1 Bulgaria EAD	256
151.251.124.0/24	AS29580	A1 Bulgaria EAD	256
151.251.225.0/24	AS29580	A1 Bulgaria EAD	256
151.251.226.0/24	AS29580	A1 Bulgaria EAD	256
151.251.227.0/24	AS29580	A1 Bulgaria EAD	256
151.251.229.0/24	AS29580	A1 Bulgaria EAD	256
151.251.230.0/24	AS29580	A1 Bulgaria EAD	256
151.251.231.0/24	AS29580	A1 Bulgaria EAD	256
151.251.233.0/24	AS29580	A1 Bulgaria EAD	256
151.251.234.0/24	AS29580	A1 Bulgaria EAD	256
151.251.235.0/24	AS29580	A1 Bulgaria EAD	256
151.251.236.0/24	AS29580	A1 Bulgaria EAD	256
151.251.62.0/24	AS29580	A1 Bulgaria EAD	256
151.251.63.0/24	AS29580	A1 Bulgaria EAD	256
151.251.73.0/24	AS29580	A1 Bulgaria EAD	256
151.251.120.0/24	AS35141	A1 Bulgaria EAD	256
151.251.72.0/24	AS41663	A1 Bulgaria EAD	256
151.251.40.0/24	AS59484	Sis Net 05 EOOD	256
151.251.41.0/24	AS59484	Sis Net 05 EOOD	256
151.251.42.0/24	AS59484	Sis Net 05 EOOD	256
151.251.60.0/24	AS59484	Sis Net 05 EOOD	256
151.251.39.0/24	AS8672	Ministry of tourism, Republic Bulgaria	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
151.251.64.1	AS42157 A1 Bulgaria EAD	`0.56ms` from Sofia, BG

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
105.97.198.199	AS36947 Telecom Algeria	`14.80ms` from Algiers, DZ
111.161.247.55	AS4837 CHINA UNICOM China169 Backbone	`7.95ms` from Beijing, CN
181.174.24.55	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`17.87ms` from Bogota, CO
156.234.173.151	AS138415 Yancy Limited	`0.70ms` from Hong Kong, HK
63.203.145.23	AS7018 AT&T Enterprises, LLC	`1.71ms` from Los Angeles, US
219.94.253.103	AS9371 SAKURA Internet Inc.	`0.36ms` from Osaka, JP
54.147.164.119	AS14618 Amazon.com, Inc.	`0.16ms` from Reston, US
138.2.229.55	AS31898 Oracle Corporation	`0.17ms` from San Jose, US
175.251.90.183	AS4766 Korea Telecom	`5.45ms` from Seoul, KR
49.26.148.151	AS4766 Korea Telecom	`5.23ms` from Seoul, KR
106.165.28.55	AS2516 KDDI CORPORATION	`10.79ms` from Tokyo, JP
196.184.127.87	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`12.61ms` from Tunis, TN
73.39.11.71	AS7922 Comcast Cable Communications, LLC	`8.81ms` from Ashburn, US
139.177.205.183	AS63949 Akamai Connected Cloud	`0.37ms` from Atlanta, US
44.238.119.23	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
156.239.104.135	AS9294 GNET INC.	`0.85ms` from Hong Kong, HK
77.51.146.215	AS12389 PJSC Rostelecom	`1.70ms` from Moscow, RU
60.140.107.167	AS17676 SoftBank Corp.	`9.85ms` from Osaka, JP
177.10.206.231	AS262302 MATERA & MATERA LTDA	`14.30ms` from Osasco, BR
1.69.142.7	AS4134 CHINANET-BACKBONE	`10.14ms` from Taiyuan, CN
216.211.112.135	AS32277 TBayTel	`14.68ms` from Toronto, CA
212.243.119.55	AS3303 Swisscom (Switzerland) Ltd	`1.91ms` from Zuerich, CH
68.186.254.151	AS20115 Charter Communications LLC	`12.45ms` from Ashburn, US
165.85.173.71	AS394089 Google LLC	`0.16ms` from Ashburn, US
44.239.253.183	AS16509 Amazon.com, Inc.	`0.11ms` from Boardman, US

Traceroute

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

traceroute -a -n -q1 -f5 -m9 151.251.65.229

traceroute to 151.251.65.229 (151.251.65.229): 9 hops max, 52 byte packets

5 [] 80.81.192.229 5.58 ms

6 [AS8717] 212.50.13.153 27.931 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Zuerich, CH

On January 19th 2026

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