[REN-BGP-stats-all] Global R&E Routing Table Report - CERNET R&E view
REN Routing Table Report
cscora at frr.nsrc.org
Tue Jul 20 20:10:56 UTC 2021
Global R&E Routing Table Report 20:10 GMT Tue 20 Jul, 2021
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CERNET/
Analysis Summary
----------------
BGP routing table entries examined: 17182
Prefixes after maximum aggregation (per Origin AS): 9795
Deaggregation factor: 1.75
Unique aggregates announced (without unneeded subnets): 11064
Total ASes present in the Internet Routing Table: 2637
Prefixes per ASN: 6.52
Origin-only ASes present in the Internet Routing Table: 2265
Origin ASes announcing only one prefix: 1064
Transit ASes present in the Internet Routing Table: 372
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 16
Max AS path prepend of ASN (207352) 12
Prefixes from unregistered ASNs in the Routing Table: 23
Number of instances of unregistered ASNs: 23
Number of 32-bit ASNs allocated by the RIRs: 36652
Number of 32-bit ASNs visible in the Routing Table: 571
Prefixes from 32-bit ASNs in the Routing Table: 1637
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 4
Number of addresses announced to Internet: 196927024
Equivalent to 11 /8s, 188 /16s and 222 /24s
Percentage of available address space announced: 5.3
Percentage of allocated address space announced: 5.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 1976
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3894
Total APNIC prefixes after maximum aggregation: 2163
APNIC Deaggregation factor: 1.80
Prefixes being announced from the APNIC address blocks: 3896
Unique aggregates announced from the APNIC address blocks: 2548
APNIC Region origin ASes present in the Internet Routing Table: 535
APNIC Prefixes per ASN: 7.28
APNIC Region origin ASes announcing only one prefix: 233
APNIC Region transit ASes present in the Internet Routing Table: 50
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 196
Number of APNIC addresses announced to Internet: 45131008
Equivalent to 2 /8s, 176 /16s and 165 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-147769
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 7449
Total ARIN prefixes after maximum aggregation: 4102
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 7474
Unique aggregates announced from the ARIN address blocks: 4649
ARIN Region origin ASes present in the Internet Routing Table: 1140
ARIN Prefixes per ASN: 6.56
ARIN Region origin ASes announcing only one prefix: 421
ARIN Region transit ASes present in the Internet Routing Table: 157
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 148
Number of ARIN addresses announced to Internet: 86803696
Equivalent to 5 /8s, 44 /16s and 132 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3365
Total RIPE prefixes after maximum aggregation: 2738
RIPE Deaggregation factor: 1.23
Prefixes being announced from the RIPE address blocks: 3359
Unique aggregates announced from the RIPE address blocks: 2745
RIPE Region origin ASes present in the Internet Routing Table: 671
RIPE Prefixes per ASN: 5.01
RIPE Region origin ASes announcing only one prefix: 320
RIPE Region transit ASes present in the Internet Routing Table: 106
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 16
Number of RIPE region 32-bit ASNs visible in the Routing Table: 129
Number of RIPE addresses announced to Internet: 58105856
Equivalent to 3 /8s, 118 /16s and 160 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-213403
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1567
Total LACNIC prefixes after maximum aggregation: 589
LACNIC Deaggregation factor: 2.66
Prefixes being announced from the LACNIC address blocks: 1565
Unique aggregates announced from the LACNIC address blocks: 818
LACNIC Region origin ASes present in the Internet Routing Table: 174
LACNIC Prefixes per ASN: 8.99
LACNIC Region origin ASes announcing only one prefix: 67
LACNIC Region transit ASes present in the Internet Routing Table: 28
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 73
Number of LACNIC addresses announced to Internet: 4214848
Equivalent to 0 /8s, 64 /16s and 80 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 884
Total AfriNIC prefixes after maximum aggregation: 186
AfriNIC Deaggregation factor: 4.75
Prefixes being announced from the AfriNIC address blocks: 884
Unique aggregates announced from the AfriNIC address blocks: 300
AfriNIC Region origin ASes present in the Internet Routing Table: 48
AfriNIC Prefixes per ASN: 18.42
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25
Number of AfriNIC addresses announced to Internet: 2670592
Equivalent to 0 /8s, 40 /16s and 192 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 607 2155 455 SINET-AS Research Organization of Infor
1237 192 75 137 KREONET-AS-KR KISTI, KR
7575 179 330 125 AARNET-AS-AP Australian Academic and Re
58647 164 18 2 KAGAWAU-AS Kagawa University, JP
55824 129 19 23 NKN-CORE-NW NKN Core Network, IN
4538 111 4160 69 ERX-CERNET-BKB China Education and Rese
4621 81 37 10 UNINET-AS-AP UNINET-, TH
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
1659 57 1466 35 ERX-TANET-ASN1 Taiwan Academic Network
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7896 246 51 7 NU-AS, US
376 234 180 158 RISQ-AS, CA
5786 201 16 1 UPRENET, PR
2152 155 507 87 CSUNET-NW, US
18558 137 18 4 NETBLK-RCOEK, US
2920 112 34 6 LACOE, US
21976 86 51 18 NJEDGE-NET, US
1736 80 16 1 MU-AS, US
3 78 528 13 MIT-GATEWAYS, US
3477 69 71 40 NOAA-NWAVE, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 273 1996 235 DFN Verein zur Foerderung eines Deutsch
786 187 1779 185 JANET Jisc Services Limited, GB
8895 141 24 4 ISU Internet Services Unit ISU, SA
559 116 550 107 SWITCH Peering requests: peering at switch
1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL
137 82 677 77 ASGARR Consortium GARR, IT
553 72 449 72 BELWUE BelWue-Koordination, DE
2200 65 646 60 FR-RENATER Reseau National de telecommu
2614 62 32 59 ROEDUNET, RO
1930 56 80 51 RCCN Fundacao para a Ciencia e a Tecnol
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 202 207 41 Associacao Rede Nacional de Ensino e Pe
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 93 24 53 Red Universitaria Nacional, CL
27884 93 6 2 CABLECOLOR S.A., HN
1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo
4270 44 16 1 Red de Interconexion Universitaria, AR
19611 44 17 2 Associacao Antonio Vieira - Unisinos, B
61468 41 3 15 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 329 319 74 TENET-1, ZA
327687 134 28 3 RENU, UG
36914 97 82 3 KENET-AS, KE
2561 75 5 33 EUN, EG
8094 55 48 4 PUKNET, ZA
327700 37 16 1 MoRENet, MZ
37215 30 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37074 11 8 2 UG-AS, GH
37182 11 8 1 TERNET, TZ
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 607 2155 455 SINET-AS Research Organization of Infor
2018 329 319 74 TENET-1, ZA
680 273 1996 235 DFN Verein zur Foerderung eines Deutsch
7896 246 51 7 NU-AS, US
376 234 180 158 RISQ-AS, CA
1916 202 207 41 Associacao Rede Nacional de Ensino e Pe
5786 201 16 1 UPRENET, PR
1237 192 75 137 KREONET-AS-KR KISTI, KR
786 187 1779 185 JANET Jisc Services Limited, GB
7575 179 330 125 AARNET-AS-AP Australian Academic and Re
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
2018 329 255 TENET-1, ZA
7896 246 239 NU-AS, US
5786 201 200 UPRENET, PR
58647 164 162 KAGAWAU-AS Kagawa University, JP
1916 202 161 Associacao Rede Nacional de Ensino e Pesquisa,
8895 141 137 ISU Internet Services Unit ISU, SA
18558 137 133 NETBLK-RCOEK, US
327687 134 131 RENU, UG
55824 129 106 NKN-CORE-NW NKN Core Network, IN
2920 112 106 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
36843 UNALLOCATED 64.56.80.0/23 11096 FLORIDANET, US
19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 108.59.23.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 131.91.252.0/22 11096 FLORIDANET, US
14822 UNALLOCATED 140.163.0.0/16 10466 MAGPI, US
14822 UNALLOCATED 140.163.0.0/17 10466 MAGPI, US
14822 UNALLOCATED 140.163.6.0/24 10466 MAGPI, US
14822 UNALLOCATED 140.163.64.0/24 10466 MAGPI, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
192.31.196.0/24 Origin: 112 UNASSIGNED
Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
Transit: 11537 INTERNET2-RESEARCH-EDU, US
192.107.242.0/24 Origin: 394784 UNASSIGNED
Transit: 40831 PHS, US
205.166.145.0/24 Origin: 394784 UNASSIGNED
Transit: 40831 PHS, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:2 /11:1 /12:10
/13:18 /14:32 /15:112 /16:1927 /17:370 /18:409
/19:546 /20:798 /21:822 /22:1324 /23:1349 /24:9350
/25:47 /26:30 /27:33 /28:1 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8895 136 141 ISU Internet Services Unit ISU, SA
27884 90 93 CABLECOLOR S.A., HN
36914 84 97 KENET-AS, KE
23024 53 56 OCDE, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
25977 31 45 HCCS, US
327700 31 37 MoRENet, MZ
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
27609 29 45 USC-UNIVERSITY-HOSPITAL, US
32440 29 44 LONI, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 5:15 8:2 12:1 14:83 18:41
23:7 24:6 31:6 37:6 38:9 40:1
41:139 42:4 44:5 45:63 46:7 47:1
49:8 50:1 52:1 59:3 61:4 62:7
63:34 64:46 65:1 66:37 67:44 68:8
69:17 71:1 72:11 74:19 76:32 77:6
78:3 79:10 80:14 81:32 82:4 83:7
84:9 85:33 86:9 87:1 88:1 89:10
91:46 92:1 93:12 94:4 95:5 96:5
97:1 98:2 102:8 103:258 104:11 108:8
109:8 110:3 111:20 112:4 114:23 115:1
116:4 117:61 118:3 119:3 121:20 125:6
128:81 129:174 130:91 131:95 132:60 133:137
134:90 136:192 137:146 138:10 139:5 140:36
141:2 142:43 143:39 144:53 146:123 147:64
148:159 149:13 150:36 151:6 152:75 153:11
154:24 155:48 156:64 157:25 158:44 159:19
160:25 161:16 162:19 163:61 164:40 165:16
166:1 167:16 168:130 169:10 170:51 171:1
172:2 173:2 175:31 176:8 177:7 178:1
179:12 180:20 181:11 182:6 184:5 185:38
186:3 187:18 188:13 189:6 190:138 191:35
192:1243 193:249 194:143 195:94 196:169 197:4
198:437 199:236 200:256 201:39 202:558 203:420
204:345 205:173 206:179 207:168 208:56 209:110
210:116 211:13 212:168 213:4 216:79 217:16
218:6 219:7 220:24 222:2
End of report
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