2001:250:4000::/40
Nobody announces 2001:250:4000::/40 on its own; it is covered by 2001:250::/32 AS23910 CNGI-CERNET2-AS-AP. Seen by 0 of our 5 looking glass sessions.
Summary
What the table says about 2001:250:4000::/40
Prefix
Origin
not announced
Size
16,777,216 /64s
Less specific
More specifics
58
IRR route objects
1 exact, 6 covering
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 2001:250:4000::/40 | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:4000::/39 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:4000::/38 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:4000::/37 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:4000::/36 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:4000::/35 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
| 2001:250:4000::/34 covering | AS4538 ERX-CERNET-BKB | APNIC | China Education and Research Network (CERNET) FIT 3-220, Tsinghua University | MAINT-CERNET-AP |
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Covering prefixes
Announced prefixes that contain this one, most specific first.
More specific
Prefixes inside 2001:250:4000::/40
58 announced prefixes fall inside this one.
Show the 58 prefixes
2001:250:4000::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4001::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4002::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4003::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4004::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4005::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4006::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4008::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4009::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:400a::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:400b::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:400c::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:400d::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:400e::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:400f::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4010::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4011::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4012::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4013::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4014::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4016::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4017::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4018::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4019::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:401b::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:401c::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:401d::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:401e::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:401f::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4022::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4025::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4026::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4027::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4028::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4029::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:402a::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:402c::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:402e::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:402f::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4030::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4031::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4032::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4033::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4035::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4036::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4037::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4038::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4039::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:403a::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:403b::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:403c::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:403d::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:403e::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:403f::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4041::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4051::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4052::/48 AS24358 CNGI-WH-IX-AS-AP2001:250:4053::/48 AS24358 CNGI-WH-IX-AS-AP