91.220.42.0/24

AS42427 · Mimecast Services Limited

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Summary

Country	United Kingdom
Domain	mimecast.com
ASN	AS42427
Registry	RIPE
ID	MIMECAST-NET2

WHOIS Details

inetnum:        91.220.42.0 - 91.220.42.255
netname:        MIMECAST-NET2
country:        GB
org:            ORG-MSL21-RIPE
admin-c:        CGRD-RIPE
tech-c:         CGRD-RIPE
status:         ASSIGNED PI
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MCSL-RIPE-MNT
created:        2010-10-19T10:03:24Z
last-modified:  2019-04-01T19:21:43Z
source:         RIPE
abuse-email:    abuse@mimecast.com
abuse-c:        CGRD-RIPE
abuse-org:      ORG-MSL21-RIPE

organisation:   ORG-MSL21-RIPE
org-name:       Mimecast Services Limited
country:        GB
org-type:       LIR
address:        1 Finsbury Avenue
address:        EC2M 2PF
address:        London
address:        UNITED KINGDOM
phone:          +442078478700
e-mail:         netops@mimecast.com
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MCSL-RIPE-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MCSL-RIPE-MNT
abuse-c:        CGRD-RIPE
created:        2014-05-05T13:57:11Z
last-modified:  2023-03-02T16:20:07Z
source:         RIPE
admin-c:        CGRD-RIPE

role:           Mimecast - CoreGrid
address:        1 Finsbury Avenue
address:        London
address:        EC2M 2PF
address:        United Kingdom
phone:          +44 (0)207 847 8700
admin-c:        MCNO2003-RIPE
tech-c:         MCNO2003-RIPE
e-mail:         netops@mimecast.com
remarks:        ---------------------------------
abuse-mailbox:  abuse@mimecast.com
remarks:        ---------------------------------
nic-hdl:        CGRD-RIPE
mnt-by:         MCSL-RIPE-MNT
created:        2014-05-20T16:18:44Z
last-modified:  2023-09-28T13:31:26Z
source:         RIPE

route:          91.220.42.0/24
descr:          MIMECAST-NET2
origin:         AS1290
mnt-by:         PSINET-MNT
mnt-by:         PSINET-UK-SYSADMIN
created:        2010-10-21T12:34:07Z
last-modified:  2010-10-21T12:34:07Z
source:         RIPE

route:          91.220.42.0/24
descr:          MIMECAST-NET2
origin:         AS42427
mnt-by:         MCSL-RIPE-MNT
created:        2018-04-18T10:47:43Z
last-modified:  2018-07-10T11:19:44Z
source:         RIPE

Nearby Ranges

BGP prefixes that overlap with 91.220.0.0/16

Range	ASN	Company	Num of IPs
91.220.10.0/24	AS211671	DE-PETER-HURTENBACH-20231227	256
91.220.101.0/24	AS34259	TOV Highload Systems	256
91.220.102.0/24	AS6696	Tyneso NV	256
91.220.1.0/24	AS51613	Komus LLC	256
91.220.103.0/24	AS8508	Biblioteka Slaska	256
91.220.104.0/24	AS51794	Viknaland LLC	256
91.220.105.0/24	AS51774	Servier Polska Services Sp. z o.o.	256
91.220.106.0/24	AS51875	COMMERCIAL COMPANY SILVER SERVICE LLC	256
91.220.107.0/24	AS51816	PRO.ASTEC d.o.o.	256
91.220.108.0/24	AS216028	Ellaktor S.A.	256
91.220.109.0/24	AS9123	JSC TIMEWEB	256
91.220.110.0/24	AS57508	Hosting network	256
91.220.11.0/24	AS197303	OCS Group Limited	256
91.220.111.0/24	AS6696	BigUp SARL	256
91.220.112.0/24	AS212030	SMARTS-CITIES LLC	256
91.220.113.0/24	AS213222	Tida Data Processing Ltd	256
91.220.114.0/24	AS51802	EPS LT, UAB	256
91.220.115.0/24	AS212633	EE Mobile Telecom Ltd	256
91.220.116.0/24	AS25540	CRM 80 SAS	256
91.220.117.0/24	AS12552	Artisan Konsult AB	256
91.220.118.0/24	AS51845	WATERSTONS LIMITED	256
91.220.119.0/24	AS197391	Tobacna Ljubljana d.o.o.	256
91.220.120.0/24	AS202173	MaximaTelecom JSC	256
91.220.12.0/24	AS51633	Novatek-Chelyabinsk LLC	256
91.220.122.0/24	AS16019	Komplet NET s.r.o.	256
91.220.123.0/24	AS39686	VI Company Services B.V.	256
91.220.124.0/24	AS198669	KNET TELECOM Ltd	256
91.220.125.0/24	AS8881	Johanniter Competence Center GmbH	256
91.220.127.0/24	AS62217	Vinters IT Ltd	256
91.220.128.0/24	AS197380	ITpoint Systems AG	256
91.220.129.0/24	AS48918	TourOnline AG	256
91.220.130.0/24	AS197226	Lukasz Sobon trading as SC Media Adam i Lukasz Sobon Sp. J.	256
91.220.13.0/24	AS51626	Str. Cernauti nr. 27C,	256
91.220.131.0/24	AS50311	Digital Realty Hellas Single Member S.A	256
91.220.132.0/24	AS51823	Microtalk Europe Ltd	256
91.220.133.0/24	AS24638	Rambler Internet Holding LLC	256
91.220.134.0/24	AS8792	WeltN24 GmbH	256
91.220.135.0/24	AS197392	Infodom Ltd	256
91.220.136.0/24	AS197429	Cerence B.V.	256
91.220.137.0/24	AS51882	Government of Kurgan area	256
91.220.138.0/24	AS44735	Nova hf	256
91.220.139.0/24	AS51840	CSL Data Centre Services Limited	256
91.220.140.0/24	AS51851	TAS LINK LLC	256
91.220.14.0/24	AS51627	Despot Voda, 38	256
91.220.141.0/24	AS5413	Punch Partnerships (PTL) Limited	256
91.220.143.0/24	AS51850	NAME UNIT LIMITED	256
91.220.145.0/24	AS51838	Krasnoyarsklespromproekt OJSC	256
91.220.146.0/24	AS205998	Skytel LLC	256
91.220.147.0/24	AS51857	MTel B.V.	256
91.220.100.0/24	AS51817	Lonza AG	256

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
91.220.42.129	grepmail.com	1
91.220.42.230	bllarchive.com	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

Read more

Pingable IPs

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

IP Address	ASN	Details
91.220.42.2	AS42427 Mimecast Services Limited	`1.92ms` from London, GB

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
5.76.228.168	AS9198 JSC Kazakhtelecom	`2.21ms` from Almaty, KZ
97.129.122.24	AS6167 Verizon Business	`17.49ms` from Atlanta, US
209.85.221.72	AS15169 Google LLC	`0.20ms` from Brussels, BE
76.139.68.24	AS7922 Comcast Cable Communications, LLC	`9.35ms` from Chicago, US
87.146.75.104	AS3320 Deutsche Telekom AG	`6.21ms` from Frankfurt am Main, DE
87.153.119.88	AS3320 Deutsche Telekom AG	`7.51ms` from Frankfurt am Main, DE
121.33.115.88	AS4134 CHINANET-BACKBONE	`3.65ms` from Guangzhou, CN
14.228.242.168	AS45899 VNPT Corp	`4.42ms` from Hanoi, VN
171.252.181.8	AS7552 Viettel Group	`10.41ms` from Ho Chi Minh City, VN
190.3.186.88	AS267765 COTAP LTDA	`15.71ms` from La Paz, BO
165.120.1.136	AS2856 British Telecommunications PLC	`3.14ms` from London, GB
208.65.213.56	AS5555 Sohonet Limited	`0.40ms` from Los Angeles, US
186.54.172.200	AS6057 Administracion Nacional de Telecomunicaciones	`1.74ms` from Montevideo, UY
125.125.239.168	AS4134 CHINANET-BACKBONE	`7.18ms` from Ningbo, CN
60.122.144.136	AS17676 SoftBank Corp.	`3.63ms` from Osaka, JP
93.4.125.120	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`4.48ms` from Paris, FR
54.86.76.136	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
205.250.47.40	AS852 TELUS Communications Inc.	`4.32ms` from Seattle, US
109.160.90.8	AS49040 K and D UNISAT -TV LLC	`4.92ms` from Sofia, BG
13.53.148.248	AS16509 Amazon.com, Inc.	`0.12ms` from Stockholm, SE
172.201.44.200	AS8075 Microsoft Corporation	`0.30ms` from Amsterdam, NL
15.235.102.40	AS16276 OVH SAS	`0.09ms` from Beauharnois, CA
107.11.87.72	AS10796 Charter Communications Inc	`10.43ms` from Columbus, US
93.199.244.136	AS3320 Deutsche Telekom AG	`2.47ms` from Duesseldorf, DE
220.174.56.232	AS4134 CHINANET-BACKBONE	`3.81ms` from Haikou, CN

Traceroute

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

traceroute -a -n -q1 -f3 91.220.42.2

traceroute to 91.220.42.2 (91.220.42.2): 64 hops max, 52 byte packets

3 [AS36236] 185.40.232.31 0.243 ms

4 [AS2914] 165.254.23.241 0.531 ms

5 [AS2914] 129.250.5.156 0.653 ms

6 [AS2914] 129.250.4.141 0.558 ms

7 [AS2914] 83.231.146.138 2.028 ms

8 [AS42427] 185.58.86.6 1.759 ms

9 [AS42427] 91.220.42.2 1.95 ms

Measurement taken from

IPinfo ProbeNet in London, GB

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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