AS208638 Mimecast Services Limited

Country of Origin:

United Kingdom

Prefixes Originated (all): 5
Prefixes Originated (v4): 3
Prefixes Originated (v6): 2

Prefixes Announced (all): 5
Prefixes Announced (v4): 3
Prefixes Announced (v6): 2

RPKI Originated Valid (all): 5
RPKI Originated Valid (v4): 3
RPKI Originated Valid (v6): 2

RPKI Originated Invalid (all): 0
RPKI Originated Invalid (v4): 0
RPKI Originated Invalid (v6): 0

BGP Peers Observed (all): 5
BGP Peers Observed (v4): 5
BGP Peers Observed (v6): 1

IPs Originated (v4): 768
AS Paths Observed (v4): 1,341
AS Paths Observed (v6): 438

Average AS Path Length (all): 4.092
Average AS Path Length (v4): 4.057
Average AS Path Length (v6): 4.199

AS208638 IPv4 Peers

ASN	Name
AS7545	TPG Telecom Limited
AS174	Cogent Communications
AS8220	COLT Technology Services Group Limited
AS49425	Digital Realty (UK) Limited

AS208638 IPv6 Peers

ASN	Name
AS49425	Digital Realty (UK) Limited

AS208638 IPv4 Peer Count

AS208638 IPv6 Peer Count

AS208638 IPv4 Prefixes Announced

AS208638 IPv6 Prefixes Announced

AS208638 IPv4 Prefixes Originated

AS208638 IPv6 Prefixes Originated

AS208638 IPv4 Route Propagation

AS208638 IPv6 Route Propagation

Prefix	Description	Visibility
Loading Prefixes...

Prefix	Description
45.91.16.0/24	Mimecast Services Limited
45.91.17.0/24
45.91.18.0/24

Prefix	Description	Visibility
Loading Prefixes...

Prefix	Description
2a0e:e40::/32
2a0e:e42::/32

Bogon Prefixes
Prefix	Type	Status

Rank	Description	IPv6	Peer
1	TPG Telecom Limited		AS7545
2	Cogent Communications		AS174
3	COLT Technology Services Group Limited		AS8220
4	Digital Realty (UK) Limited	X	AS49425
5	Sprint		AS1239

Rank	Description	IPv4	Peer
1	Digital Realty (UK) Limited	X	AS49425

as-block:       AS208189 - AS215128
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2025-03-25T09:02:29Z
last-modified:  2025-03-25T09:02:29Z
source:         RIPE

aut-num:        AS208638
as-name:        mimecast-it-corp
org:            ORG-MSL44-RIPE
import:         from AS174 accept ANY
export:         to AS174 announce AS208638
import:         from AS49425 accept ANY
export:         to AS49425 announce AS208638
export:         to AS7545 announce AS208638
import:         from AS7545 accept ANY
import:         from AS36086 accept ANY
export:         to AS36086 announce AS208638
import:         from AS8220 accept ANY
export:         to AS8220 announce AS208638
import:         from AS327782 accept ANY
export:         to AS327782 announce AS208638
import:         from AS328317 accept ANY
export:         to AS328317 announce AS208638
import:         from AS1221 accept ANY
export:         to AS1221 announce AS208638
admin-c:        SM36014-RIPE
tech-c:         SM36014-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         mnt-uk-mimecast-it-1
created:        2019-07-01T09:11:07Z
last-modified:  2024-02-02T00:06:47Z
source:         RIPE

organisation:   ORG-MSL44-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
admin-c:        SM36014-RIPE
tech-c:         SM36014-RIPE
abuse-c:        AR53361-RIPE
mnt-ref:        mnt-uk-mimecast-it-1
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         mnt-uk-mimecast-it-1
created:        2019-06-20T11:35:57Z
last-modified:  2021-05-20T17:27:19Z
source:         RIPE # Filtered

person:         Stephen Mandolare
address:        191 Spring Street Lexington MA 02421 United States
phone:          +16173937000
nic-hdl:        SM36014-RIPE
mnt-by:         mnt-uk-mimecast-it-1
created:        2019-08-02T18:40:24Z
last-modified:  2024-01-31T00:21:03Z
source:         RIPE # Filtered

ALTDB

aut-num: AS208638 as-name: TELX-AS208638 descr: Proxy Registration for Mimecast by Digital Realty (North America) member-of: AS-TELX tech-c: Telx IP admin-c: Telx IP mnt-by: MAINT-TELX changed: ipadmin@telx.com 20210122 source: ALTDB

RIPE

aut-num: AS208638 as-name: mimecast-it-corp org: ORG-MSL44-RIPE import: from AS174 accept ANY export: to AS174 announce AS208638 import: from AS49425 accept ANY export: to AS49425 announce AS208638 export: to AS7545 announce AS208638 import: from AS7545 accept ANY import: from AS36086 accept ANY export: to AS36086 announce AS208638 import: from AS8220 accept ANY export: to AS8220 announce AS208638 import: from AS327782 accept ANY export: to AS327782 announce AS208638 import: from AS328317 accept ANY export: to AS328317 announce AS208638 import: from AS1221 accept ANY export: to AS1221 announce AS208638 admin-c: DUMY-RIPE tech-c: DUMY-RIPE status: ASSIGNED mnt-by: RIPE-NCC-END-MNT mnt-by: mnt-uk-mimecast-it-1 created: 2019-07-01T09:11:07Z last-modified: 2024-02-02T00:06:47Z 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: ****************************

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