[REN-BGP-stats-all] Global R&E Routing Table Report - ASREN R&E view
REN Routing Table Report
cscora at frr.nsrc.org
Fri May 28 16:15:12 UTC 2021
Global R&E Routing Table Report 16:15 GMT Fri 28 May, 2021
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/
Analysis Summary
----------------
BGP routing table entries examined: 14635
Prefixes after maximum aggregation (per Origin AS): 8494
Deaggregation factor: 1.72
Unique aggregates announced (without unneeded subnets): 9421
Total ASes present in the Internet Routing Table: 2161
Prefixes per ASN: 6.77
Origin-only ASes present in the Internet Routing Table: 1863
Origin ASes announcing only one prefix: 884
Transit ASes present in the Internet Routing Table: 298
Transit-only ASes present in the Internet Routing Table: 37
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 17
Max AS path prepend of ASN ( 5474) 11
Prefixes from unregistered ASNs in the Routing Table: 6
Number of instances of unregistered ASNs: 6
Number of 32-bit ASNs allocated by the RIRs: 36147
Number of 32-bit ASNs visible in the Routing Table: 458
Prefixes from 32-bit ASNs in the Routing Table: 1353
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 0
Number of addresses announced to Internet: 177377472
Equivalent to 10 /8s, 146 /16s and 144 /24s
Percentage of available address space announced: 4.8
Percentage of allocated address space announced: 4.8
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: 1694
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3889
Total APNIC prefixes after maximum aggregation: 2074
APNIC Deaggregation factor: 1.88
Prefixes being announced from the APNIC address blocks: 3891
Unique aggregates announced from the APNIC address blocks: 2285
APNIC Region origin ASes present in the Internet Routing Table: 463
APNIC Prefixes per ASN: 8.40
APNIC Region origin ASes announcing only one prefix: 205
APNIC Region transit ASes present in the Internet Routing Table: 48
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 15
Number of APNIC region 32-bit ASNs visible in the Routing Table: 169
Number of APNIC addresses announced to Internet: 44894944
Equivalent to 2 /8s, 173 /16s and 10 /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: 5619
Total ARIN prefixes after maximum aggregation: 3333
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 5628
Unique aggregates announced from the ARIN address blocks: 3812
ARIN Region origin ASes present in the Internet Routing Table: 864
ARIN Prefixes per ASN: 6.51
ARIN Region origin ASes announcing only one prefix: 310
ARIN Region transit ASes present in the Internet Routing Table: 113
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 17
Number of ARIN region 32-bit ASNs visible in the Routing Table: 104
Number of ARIN addresses announced to Internet: 71325696
Equivalent to 4 /8s, 64 /16s and 88 /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: 3147
Total RIPE prefixes after maximum aggregation: 2522
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3144
Unique aggregates announced from the RIPE address blocks: 2591
RIPE Region origin ASes present in the Internet Routing Table: 632
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 302
RIPE Region transit ASes present in the Internet Routing Table: 100
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 119
Number of RIPE addresses announced to Internet: 56179072
Equivalent to 3 /8s, 89 /16s and 57 /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: 862
Total LACNIC prefixes after maximum aggregation: 397
LACNIC Deaggregation factor: 2.17
Prefixes being announced from the LACNIC address blocks: 860
Unique aggregates announced from the LACNIC address blocks: 497
LACNIC Region origin ASes present in the Internet Routing Table: 117
LACNIC Prefixes per ASN: 7.35
LACNIC Region origin ASes announcing only one prefix: 48
LACNIC Region transit ASes present in the Internet Routing Table: 20
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 44
Number of LACNIC addresses announced to Internet: 2338144
Equivalent to 0 /8s, 35 /16s and 173 /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: 1112
Total AfriNIC prefixes after maximum aggregation: 163
AfriNIC Deaggregation factor: 6.82
Prefixes being announced from the AfriNIC address blocks: 1112
Unique aggregates announced from the AfriNIC address blocks: 236
AfriNIC Region origin ASes present in the Internet Routing Table: 46
AfriNIC Prefixes per ASN: 24.17
AfriNIC Region origin ASes announcing only one prefix: 19
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 7
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 22
Number of AfriNIC addresses announced to Internet: 2639616
Equivalent to 0 /8s, 40 /16s and 71 /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 618 2155 455 SINET-AS Research Organization of Infor
7497 427 210 22 CSTNET-AS-AP Computer Network Informati
1237 191 75 137 KREONET-AS-KR KISTI, KR
7575 181 331 128 AARNET-AS-AP Australian Academic and Re
58647 176 18 2 KAGAWAU-AS Kagawa University, JP
4538 167 4192 72 ERX-CERNET-BKB China Education and Rese
55824 127 18 21 NKN-CORE-NW NKN Core Network, IN
1659 55 1450 34 ERX-TANET-ASN1 Taiwan Academic Network
2697 55 3 31 ERX-ERNET-AS Education and Research Net
132524 48 9 11 TIFR-AS Tata Institute of Fundamental R
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
376 226 180 149 RISQ-AS, CA
5786 201 16 1 UPRENET, PR
2152 160 507 92 CSUNET-NW, US
18558 136 18 4 NETBLK-RCOEK, US
270 117 297 87 AS270, US
2920 112 34 6 LACOE, US
21976 86 51 18 NJEDGE-NET, US
22742 85 62 45 CT-EDU-NET, US
1736 80 16 1 MU-AS, US
15296 65 5 54 CYBERA, CA
Complete listing at https://bgp.nsrc.org/REN/ASREN/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 1787 185 JANET Jisc Services Limited, GB
8895 172 24 4 ISU Internet Services Unit (ISU), SA
559 116 550 107 SWITCH Peering requests: (peering at switc
1103 95 1520 84 SURFNET-NL SURFnet, The Netherlands, NL
137 82 677 77 ASGARR Consortium GARR, IT
2200 66 647 61 FR-RENATER Reseau National de telecommu
2614 62 32 59 ROEDUNET, RO
1930 56 82 51 RCCN Fundacao para a Ciencia e a Tecnol
1653 52 151 49 SUNET SUNET Swedish University Network,
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 121 121 49 Associacao Rede Nacional de Ensino e Pe
11340 94 24 54 Red Universitaria Nacional, CL
1251 66 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 49 53 32 Fundacao Carlos Chagas Filho de Amparo
4270 44 16 1 Red de Interconexion Universitaria, AR
61468 41 3 15 CEDIA, EC
20191 31 16 1 Pontificia Universidad Catolica de Chil
271640 27 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
28571 26 10 19 UNIVERSIDADE DE SAO PAULO, BR
3597 23 2 17 Fundacion InnovaT, AR
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 405 82 3 KENET-AS, KE
2018 321 319 72 TENET-1, ZA
327687 136 28 3 RENU, UG
8094 55 48 4 PUKNET, ZA
327700 40 16 1 MoRENet, MZ
37215 29 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37501 11 49 6 UOFS, ZA
2561 9 1 8 EUN, EG
36982 8 33 8 UCT, ZA
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 618 2155 455 SINET-AS Research Organization of Infor
7497 427 210 22 CSTNET-AS-AP Computer Network Informati
36914 405 82 3 KENET-AS, KE
2018 321 319 72 TENET-1, ZA
680 273 1996 235 DFN Verein zur Foerderung eines Deutsch
376 226 180 149 RISQ-AS, CA
5786 201 16 1 UPRENET, PR
1237 191 75 137 KREONET-AS-KR KISTI, KR
786 187 1787 185 JANET Jisc Services Limited, GB
7575 181 331 128 AARNET-AS-AP Australian Academic and Re
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 427 405 CSTNET-AS-AP Computer Network Information Cente
36914 405 402 KENET-AS, KE
2018 321 249 TENET-1, ZA
5786 201 200 UPRENET, PR
58647 176 174 KAGAWAU-AS Kagawa University, JP
8895 172 168 ISU Internet Services Unit (ISU), SA
327687 136 133 RENU, UG
18558 136 132 NETBLK-RCOEK, US
55824 127 106 NKN-CORE-NW NKN Core Network, IN
2920 112 106 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/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
36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 146.201.218.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 146.201.219.0/24 11096 FLORIDANET, US
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS
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
/13:19 /14:34 /15:103 /16:1688 /17:284 /18:297
/19:468 /20:660 /21:743 /22:1153 /23:1191 /24:7791
/25:79 /26:59 /27:52 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 379 405 KENET-AS, KE
8895 167 172 ISU Internet Services Unit (ISU), SA
23024 53 56 OCDE, US
327700 34 40 MoRENet, MZ
25977 29 32 HCCS, US
200521 25 41 SEAP-AGE, ES
1916 24 121 Associacao Rede Nacional de Ensino e Pesquisa,
2614 24 62 ROEDUNET, RO
37215 23 29 MAREN, MW
3233 21 30 ICI-ROTLD Romanian Natioanal R&D Network, RO
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 5:15 8:2 12:1 14:84 24:2
31:3 37:6 38:3 41:235 42:8 44:4
45:41 46:6 49:10 58:4 59:10 60:4
61:3 62:6 63:4 64:19 66:6 67:36
68:1 69:14 71:1 72:11 74:8 76:7
77:5 78:3 79:10 80:13 81:29 82:2
83:8 84:3 85:29 86:5 87:1 88:1
89:10 91:45 93:11 94:2 95:3 96:5
101:3 102:7 103:217 104:5 106:1 108:3
109:8 110:3 111:20 112:4 114:18 116:4
117:2 118:17 119:19 121:27 122:8 124:40
125:1 128:66 129:37 130:86 131:80 132:53
133:137 134:83 136:191 137:117 138:9 139:4
140:31 141:2 142:41 143:32 144:27 146:121
147:25 148:7 149:12 150:17 151:5 152:64
153:5 154:24 155:38 156:64 157:25 158:41
159:113 160:26 161:15 162:8 163:60 164:34
165:14 166:1 167:15 168:96 169:8 170:45
172:1 173:2 175:20 176:8 177:4 178:1
179:6 180:21 182:5 184:2 185:35 186:2
187:1 188:13 190:41 192:1187 193:181 194:111
195:68 196:169 197:194 198:348 199:190 200:163
201:7 202:382 203:305 204:318 205:139 206:144
207:117 208:46 209:93 210:179 211:13 212:165
213:4 216:31 217:16 218:5 219:13 220:9
222:4 223:2
End of report
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