151.251.48.0/21

AS13124 · A1 Bulgaria EAD

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Summary

Country	Bulgaria
Domain	a1.bg
ASN	AS13124
Parent Range	151.251.0.0/16
Registry	RIPE
ID	A1-BFP48

WHOIS Details

inetnum:        151.251.48.0 - 151.251.55.255
netname:        A1-BFP48
descr:          A1 Bulgaria EAD
country:        BG
geoloc:         42.13082130188811 24.7412109375
admin-c:        SSS126-RIPE
tech-c:         SSS126-RIPE
status:         ASSIGNED PA
mnt-by:         AS13124-MNT
created:        2012-08-31T12:17:36Z
last-modified:  2018-05-30T11:15:42Z
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:          151.251.48.0/21
descr:          A1 BG Net
origin:         AS13124
mnt-by:         ORBITEL-NOC
mnt-by:         SPNET-MNT
mnt-by:         MNT-LINKBG
mnt-by:         AS12716-MNT
mnt-by:         ROUTE-12716-MNT
created:        2021-09-28T08:50:16Z
last-modified:  2022-11-28T17:24:47Z
source:         RIPE

Overlapping Ranges

BGP prefixes that contain 151.251.48.0/21

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

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
151.251.55.140	lazyice.net	1

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

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

IP Address	ASN	Details
151.251.52.70	AS13124 A1 Bulgaria EAD	`4.90ms` from Sofia, BG
151.251.51.195	AS13124 A1 Bulgaria EAD	`2.36ms` from Sofia, BG
151.251.54.166	AS13124 A1 Bulgaria EAD	`4.69ms` from Sofia, BG
151.251.49.219	AS13124 A1 Bulgaria EAD	`3.21ms` from Sofia, BG
151.251.53.100	AS13124 A1 Bulgaria EAD	`2.87ms` from Sofia, BG
151.251.50.117	AS13124 A1 Bulgaria EAD	`3.17ms` from Sofia, BG
151.251.48.1	AS13124 A1 Bulgaria EAD	`0.54ms` from Sofia, BG
151.251.55.80	AS13124 A1 Bulgaria EAD	`2.27ms` 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
73.31.129.53	AS7922 Comcast Cable Communications, LLC	`7.72ms` from Ashburn, US
72.183.73.133	AS11427 Charter Communications Inc	`5.34ms` from Dallas, US
190.149.60.197	AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA	`0.32ms` from Guatemala City, GT
70.185.203.213	AS22773 Cox Communications Inc.	`8.06ms` from Kansas City, US
109.49.14.69	AS2860 NOS COMUNICACOES, S.A.	`6.74ms` from Lisbon, PT
15.229.60.117	AS16509 Amazon.com, Inc.	`0.14ms` from Osasco, BR
18.236.137.5	AS16509 Amazon.com, Inc.	`4.47ms` from Portland, US
44.220.140.197	AS14618 Amazon.com, Inc.	`0.40ms` from Reston, US
184.72.20.5	AS16509 Amazon.com, Inc.	`0.11ms` from San Jose, US
222.99.122.213	AS4766 Korea Telecom	`1.55ms` from Seoul, KR
183.132.156.245	AS4134 CHINANET-BACKBONE	`11.45ms` from Shanghai, CN
79.100.30.117	AS8866 Vivacom Bulgaria EAD	`4.53ms` from Sofia, BG
151.213.49.133	AS7029 Windstream Communications LLC	`4.94ms` from Atlanta, US
58.181.198.229	AS7693 KSC Commercial Internet Co. Ltd.	`1.52ms` from Bangkok, TH
3.129.178.101	AS16509 Amazon.com, Inc.	`0.18ms` from Columbus, US
83.94.125.149	AS3292 TDC Holding A/S	`0.71ms` from Copenhagen, DK
109.57.231.229	AS44034 Hi3G Access AB	`9.47ms` from Falkenberg, SE
3.73.178.117	AS16509 Amazon.com, Inc.	`0.28ms` from Frankfurt am Main, DE
79.252.102.213	AS3320 Deutsche Telekom AG	`6.98ms` from Frankfurt am Main, DE
43.155.90.53	AS132203 Tencent Building, Kejizhongyi Avenue	`0.38ms` from Hong Kong, HK
108.65.165.53	AS7018 AT&T Enterprises, LLC	`11.58ms` from Miami, US
24.20.185.197	AS7922 Comcast Cable Communications, LLC	`5.29ms` from Portland, US
100.28.58.5	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
13.219.20.149	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
59.30.154.213	AS4766 Korea Telecom	`3.23ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f5 151.251.49.248

traceroute to 151.251.49.248 (151.251.49.248): 64 hops max, 52 byte packets

5 [AS8717] 217.9.231.218 0.644 ms

6 [AS13124] 151.251.49.248 5.123 ms

Measurement taken from

IPinfo ProbeNet in Sofia, BG

On September 11th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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