Routing security
AS12257 EMC-AS12257
Unclassified ARIN
RPKI valid
4%
3 of 67 announcements
RPKI invalid
0
none
No ROA
64
not covered by any ROA
IRR registered
91%
4 missing · 2 other origin
ROAs
3
authorising this AS
Announcements
What this network originates
Every prefix observed with AS12257 as its origin, checked against RPKI and the IRR. Problems sort first.
RPKI · ROAs
Route origin authorisations
Signed statements by address holders that AS12257 may originate these prefixes, up to the maximum length shown.
| Prefix | Max length | Trust anchor |
|---|---|---|
| 147.178.8.0/24 | /24 | ARIN |
| 168.159.160.0/24 | /24 | ARIN |
| 168.159.162.0/24 | /24 | ARIN |
ROA-based and RPKI-valid-only prefix lists for routers are on asn.ipinfo.app.
RPKI · ASPA
Declared transit providers
No ASPA record This network has not published an ASPA object. ASPA lets a network sign the list of its transit providers, so routers can reject paths that route through anyone else (route leaks). Only a few thousand networks publish one so far, so its absence is normal.
IRR
Registered route objects
Route objects naming AS12257 as origin, across RADb, the RIR registries, ALTDB and NTTCOM. Objects that are registered but not announced come first: a stale object lets anyone who can spoof this origin through an IRR-built filter.
| Prefix | Source | Description | Maintainer | Changed | Routing |
|---|---|---|---|---|---|
| 128.221.0.0/16 | RADB | Dell/EMC US Radb | MAINT-DELL | 2024-09-10 | Not announced |
| 128.221.192.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 128.221.195.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 128.221.204.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 128.221.210.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 128.221.211.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 128.221.229.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 128.221.234.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 128.221.236.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 128.221.236.0/24 | RADB | proxy route object for Unitas customer Dell | MAINT-AS1828 | 2023-11-13 | Not announced |
| 128.221.238.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 128.221.238.0/24 | RADB | Proxy route for Dell by UG | MAINT-AS1828 | 2023-11-13 | Not announced |
| 137.69.118.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 137.69.120.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 137.69.121.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 137.69.125.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 137.69.126.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 137.69.127.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 147.178.0.0/16 | RADB | EMC 147 B Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 147.178.0.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 147.178.9.0/24 | RADB | EMC International 147 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 147.178.12.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2025-08-07 | Not announced |
| 152.62.0.0/16 | RADB | EMC International B Class - RADB | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.44.0/24 | RADB | To allow routing to other ISPs | MAINT-AS7132 | 2023-11-13 | Not announced |
| 152.62.45.0/24 | RADB | To allow routing to other ISPs | MAINT-AS7132 | 2023-11-13 | Not announced |
| 152.62.46.0/24 | RADB | To allow routing to other ISPs | MAINT-AS7132 | 2023-11-13 | Not announced |
| 152.62.47.0/24 | RADB | To allow routing to other ISPs | MAINT-AS7132 | 2023-11-13 | Not announced |
| 152.62.60.0/24 | RADB | To allow routing to other ISPs | MAINT-AS7132 | 2023-11-13 | Not announced |
| 152.62.62.0/24 | RADB | To allow routing to other ISPs | MAINT-AS7132 | 2023-11-13 | Not announced |
| 152.62.63.0/24 | RADB | To allow routing to other ISPs | MAINT-AS7132 | 2023-11-13 | Not announced |
| 152.62.107.0/24 | RADB | EMC International 107 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.138.0/24 | RADB | EMC GNT 138C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.151.0/24 | RADB | EMC GNT 151C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.166.0/24 | RADB | EMC GNT 166 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.168.0/24 | RADB | EMC GNT 168 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.169.0/24 | RADB | EMC GNT 169 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.188.0/24 | RADB | EMC International 188 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.189.0/24 | RADB | EMC International 189 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.190.0/24 | RADB | EMC International 190 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.191.0/24 | RADB | EMC International 191 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.204.0/24 | RADB | EMC GNT 204C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.213.0/24 | RADB | EGYPT 213 NET | MAINT-DELL | 2024-09-10 | Not announced |
| 152.62.231.0/24 | RADB | EMC International 231 Network - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 168.159.144.0/20 | RADB | EMC Shanghai - RADB | MAINT-DELL | 2024-09-10 | Not announced |
| 168.159.160.0/20 | RADB | EMC Bangalore - RADB | MAINT-DELL | 2024-09-10 | Not announced |
| 168.159.192.0/20 | RADB | EMC Sydney - RADB | MAINT-DELL | 2024-09-10 | Not announced |
| 168.159.214.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2025-10-08 | Not announced |
| 168.159.218.0/24 | RADB | DELL Hopkinton - RADB | MAINT-DELL | 2024-09-10 | Not announced |
| 168.159.224.0/24 | RADB | DELL Hopkinton - RADB | MAINT-DELL | 2024-09-10 | Not announced |
| 194.0.156.0/24 | RADB | EMC International 194.0.156.0 C Class - RADb | MAINT-DELL | 2024-09-10 | Not announced |
| 2607:f2b1:e012::/48 | ARIN | DUR GAS | MNT-DCC-25 | 2024-10-21 | Not announced |
| 2607:f2b1:e014::/48 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Not announced |
| 2607:f2b1:e015::/48 | ARIN | ORK GAS | MNT-DCC-25 | 2024-10-21 | Not announced |
| 2607:f2b1:e016::/48 | ARIN | SGS GAS | MNT-DCC-25 | 2024-10-21 | Not announced |
| 12.7.200.0/24 | RADB | Durham Internet Gateway -RADb | MAINT-DELL | 2024-09-10 | Announced |
| 128.221.208.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.209.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.212.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.213.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.214.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.215.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.216.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.217.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.218.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.219.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.220.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.221.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.222.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.223.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.224.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.225.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.226.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.227.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.228.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.230.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.231.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.232.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.233.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.235.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.237.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 128.221.239.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 137.69.113.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 137.69.117.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 147.178.2.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 147.178.6.0/24 | RADB | EMC International 147 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 147.178.7.0/24 | RADB | EMC International 147.7 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 147.178.8.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2026-09-18 | Announced |
| 147.178.8.0/24 | RADB | EMC International 147 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.97.0/24 | RADB | Dell Technologies | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.108.0/24 | RADB | EMC International 108 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.109.0/24 | RADB | EMC International 109 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.110.0/24 | RADB | EMC International 110 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.112.0/24 | RADB | CORK 112 NET | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.113.0/24 | RADB | CORK 113 NET | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.115.0/24 | RADB | EMC International 115 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.118.0/24 | RADB | Dell Technologies | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.154.0/24 | RADB | Dell Technologies | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.155.0/24 | RADB | Dell Technologies | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.163.0/24 | RADB | EMC GNT 163C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.164.0/24 | RADB | EMC GNT 164 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.165.0/24 | RADB | EMC GNT 165 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.184.0/24 | RADB | EMC International 108 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.185.0/24 | RADB | EMC International 185 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.186.0/24 | RADB | EMC International 186 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.187.0/24 | RADB | EMC International 187 C Class - RADb | MAINT-DELL | 2024-09-10 | Announced |
| 152.62.193.0/24 | RADB | schwalbach prefix | MAINT-DELL | 2024-09-10 | Announced |
| 163.244.40.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2024-10-21 | Announced |
| 163.244.72.0/24 | ARIN | Dell Technologies Ltd. | MNT-DCC-25 | 2024-10-21 | Announced |
| 168.159.160.0/24 | ARIN | Dell Technologies Ltd. | MNT-DCC-25 | 2026-09-18 | Announced |
| 168.159.162.0/24 | ARIN | Dell, Inc. | MNT-DCC-25 | 2026-09-18 | Announced |
| 168.159.212.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2025-10-08 | Announced |
| 168.159.213.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2025-10-08 | Announced |
| 168.159.215.0/24 | ARIN | Dell Technologies | MNT-DCC-25 | 2025-10-08 | Announced |
| 198.161.247.0/24 | RADB | Prolexic Technologies, Inc. | MAINT-AS32787 | 2023-11-13 | Announced |
IRR
AS-sets
The as-set is what upstreams expand to build this network's customer filter. Sets that list AS12257 directly show who expects to carry it.
| AS-set | Where | Relationship |
|---|---|---|
AS-ANC-CUSTOMER-PROXY-REGISTER | RADB | Lists AS12257 as a direct member |
AS-BT-DE | RIPE | Lists AS12257 as a direct member |
AS-BTIRE | RIPE | Lists AS12257 as a direct member |
AS-CTSH | RADB | Lists AS12257 as a direct member |
AS-EC-DC | RADB | Lists AS12257 as a direct member |
AS-GOLDEN | RIPE | Lists AS12257 as a direct member |
AS-HOTNET-IL | RIPE | Lists AS12257 as a direct member |
AS-IGNEMEA | RIPE | Lists AS12257 as a direct member |
AS-IMDC | ARIN | Lists AS12257 as a direct member |
AS-IODC-CUSTOMER | ARIN | Lists AS12257 as a direct member |
AS-KDDCUSTOMER2 | RADB | Lists AS12257 as a direct member |
AS-NV | RIPE | Lists AS12257 as a direct member |
AS-PACNET-CUSTOMER-PROXY-REGISTER | RADB | Lists AS12257 as a direct member |
AS-PROLE | RADB | Lists AS12257 as a direct member |
AS-SH-CUST | APNIC | Lists AS12257 as a direct member |
AS-SINGTEL | RADB | Lists AS12257 as a direct member |
AS-TEDATA | RIPE | Lists AS12257 as a direct member |
AS-TELSTRA-INTL-CUSTOMERS | RADB | Lists AS12257 as a direct member |
AS-TELSTRA-INTL-CUSTOMERS-4637 | RADB | Lists AS12257 as a direct member |
AS-UDOS | RADB | Lists AS12257 as a direct member |
AS-UNITAS-CUSTOMERS | RADB | Lists AS12257 as a direct member |
AS-VSNL-IN | RADB | Lists AS12257 as a direct member |
AS12025:AS-CUSTOMERS | RADB | Lists AS12257 as a direct member |
AS1273:AS-CWW | RIPE | Lists AS12257 as a direct member |
AS198949:AS-SD | RADB | Lists AS12257 as a direct member |
AS3491:AS-CUSTOMERS-AP | RADB | Lists AS12257 as a direct member |
AS3491:AS-CUSTOMERS-TEST | RADB | Lists AS12257 as a direct member |
AS8220:AS-COLTIE | RIPE | Lists AS12257 as a direct member |
AS9498:AS-BHARTI-IN | APNIC | Lists AS12257 as a direct member |
RPKI from rpki-client, validated 2026-10-17 12:17 UTC. IRR from ARIN, RADB, RIPE, ALTDB, APNIC, LACNIC, NTTCOM, collected 2026-10-17. Cross-check on bgp.he.net.