[REN-BGP-stats] Weekly Global R&E Routing Table Report
REN Routing Table Report
cscora at frr.nsrc.org
Sat Dec 4 22:00:33 UTC 2021
This is an automated weekly mailing describing the state of the Global
IPv4 Research & Education Routing Table received by NSRC's collector
from Internet2's network.
Daily listings are sent to ren-bgp-stats-all at lists.nsrc.org.
For historical data, please see https://bgp.nsrc.org.
If you have any comments please contact Philip Smith <philip at nsrc.org>.
Global R&E Routing Table Report 22:00 GMT Sat 04 Dec, 2021
BGP Table (R&E) as seen at Internet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/
Analysis Summary
----------------
BGP routing table entries examined: 22214
Prefixes after maximum aggregation (per Origin AS): 12126
Deaggregation factor: 1.83
Unique aggregates announced (without unneeded subnets): 14397
Total ASes present in the Internet Routing Table: 2756
Prefixes per ASN: 8.06
Origin-only ASes present in the Internet Routing Table: 2378
Origin ASes announcing only one prefix: 1089
Transit ASes present in the Internet Routing Table: 378
Transit-only ASes present in the Internet Routing Table: 48
Average AS path length visible in the Internet Routing Table: 3.3
Max AS path length visible: 14
Max AS path prepend of ASN ( 10497) 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: 37991
Number of 32-bit ASNs visible in the Routing Table: 615
Prefixes from 32-bit ASNs in the Routing Table: 1720
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: 7
Number of addresses announced to Internet: 242894680
Equivalent to 14 /8s, 122 /16s and 71 /24s
Percentage of available address space announced: 6.6
Percentage of allocated address space announced: 6.6
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: 3077
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4713
Total APNIC prefixes after maximum aggregation: 2324
APNIC Deaggregation factor: 2.03
Prefixes being announced from the APNIC address blocks: 4761
Unique aggregates announced from the APNIC address blocks: 2684
APNIC Region origin ASes present in the Internet Routing Table: 575
APNIC Prefixes per ASN: 8.28
APNIC Region origin ASes announcing only one prefix: 243
APNIC Region transit ASes present in the Internet Routing Table: 65
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 220
Number of APNIC addresses announced to Internet: 46031680
Equivalent to 2 /8s, 190 /16s and 99 /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, 131072-151865
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: 11608
Total ARIN prefixes after maximum aggregation: 6227
ARIN Deaggregation factor: 1.86
Prefixes being announced from the ARIN address blocks: 11509
Unique aggregates announced from the ARIN address blocks: 7687
ARIN Region origin ASes present in the Internet Routing Table: 1222
ARIN Prefixes per ASN: 9.42
ARIN Region origin ASes announcing only one prefix: 432
ARIN Region transit ASes present in the Internet Routing Table: 161
Average ARIN Region AS path length visible: 3.0
Max ARIN Region AS path length visible: 13
Number of ARIN region 32-bit ASNs visible in the Routing Table: 155
Number of ARIN addresses announced to Internet: 131876408
Equivalent to 7 /8s, 220 /16s and 70 /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: 3433
Total RIPE prefixes after maximum aggregation: 2763
RIPE Deaggregation factor: 1.24
Prefixes being announced from the RIPE address blocks: 3476
Unique aggregates announced from the RIPE address blocks: 2858
RIPE Region origin ASes present in the Internet Routing Table: 674
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 321
RIPE Region transit ASes present in the Internet Routing Table: 103
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 133
Number of RIPE addresses announced to Internet: 58170304
Equivalent to 3 /8s, 119 /16s and 155 /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: 1552
Total LACNIC prefixes after maximum aggregation: 618
LACNIC Deaggregation factor: 2.51
Prefixes being announced from the LACNIC address blocks: 1559
Unique aggregates announced from the LACNIC address blocks: 868
LACNIC Region origin ASes present in the Internet Routing Table: 182
LACNIC Prefixes per ASN: 8.57
LACNIC Region origin ASes announcing only one prefix: 71
LACNIC Region transit ASes present in the Internet Routing Table: 25
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 80
Number of LACNIC addresses announced to Internet: 4108064
Equivalent to 0 /8s, 62 /16s and 175 /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: 902
Total AfriNIC prefixes after maximum aggregation: 188
AfriNIC Deaggregation factor: 4.80
Prefixes being announced from the AfriNIC address blocks: 902
Unique aggregates announced from the AfriNIC address blocks: 293
AfriNIC Region origin ASes present in the Internet Routing Table: 51
AfriNIC Prefixes per ASN: 17.69
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 2.8
Max AfriNIC Region AS path length visible: 9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27
Number of AfriNIC addresses announced to Internet: 2706432
Equivalent to 0 /8s, 41 /16s and 76 /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 623 2157 458 SINET-AS Research Organization of Infor
7497 430 182 24 CSTNET-AS-AP Computer Network Informati
1237 188 74 135 KREONET-AS-KR KISTI, KR
7575 176 329 122 AARNET-AS-AP Australian Academic and Re
58647 176 18 2 KAGAWAU-AS Kagawa University, JP
55824 129 19 23 NKN-CORE-NW NKN Core Network, IN
4538 127 4192 72 ERX-CERNET-BKB China Education and Rese
4621 80 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
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 2733 4486 1029 AMAZON-02, US
14618 551 3986 421 AMAZON-AES, US
7896 251 51 7 NU-AS, US
668 212 702 180 DNIC-AS-00668, US
376 198 178 148 RISQ-AS, CA
5786 195 16 1 UPRENET, PR
2152 157 507 85 CSUNET-NW, US
18558 136 18 4 NETBLK-RCOEK, US
1 120 1 41 LVLT-1, US
270 119 329 88 AS270, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 277 1950 243 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
8895 176 24 4 ISU Internet Services Unit ISU, SA
559 115 550 106 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 67 647 61 FR-RENATER Reseau National de telecommu
1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol
2614 56 33 54 ROEDUNET, RO
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 204 207 42 Rede Nacional de Ensino e Pesquisa, BR
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 95 24 54 Red Universitaria Nacional, CL
1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
52286 53 4 31 Columbus Networks Guatemala, GT
19611 45 17 2 Associacao Antonio Vieira - Unisinos, B
61468 45 3 15 CEDIA, EC
4270 43 16 1 Red de Interconexion Universitaria, AR
28614 38 2 2 Fundacao Universidade Regional de Blume
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 348 319 73 TENET-1, ZA
36914 202 82 3 KENET-AS, KE
2561 73 5 32 EUN, EG
8094 50 48 4 PUKNET, ZA
327700 41 16 1 MoRENet, MZ
327687 37 28 3 RENU, UG
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
37182 13 8 1 TERNET, TZ
37501 11 49 6 UOFS, ZA
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 2733 4486 1029 AMAZON-02, US
2907 623 2157 458 SINET-AS Research Organization of Infor
14618 551 3986 421 AMAZON-AES, US
7497 430 182 24 CSTNET-AS-AP Computer Network Informati
2018 348 319 73 TENET-1, ZA
680 277 1950 243 DFN Verein zur Foerderung eines Deutsch
7896 251 51 7 NU-AS, US
668 212 702 180 DNIC-AS-00668, US
1916 204 207 42 Rede Nacional de Ensino e Pesquisa, BR
36914 202 82 3 KENET-AS, KE
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 430 406 CSTNET-AS-AP Computer Network Information Cente
2018 348 275 TENET-1, ZA
7896 251 244 NU-AS, US
36914 202 199 KENET-AS, KE
5786 195 194 UPRENET, PR
58647 176 174 KAGAWAU-AS Kagawa University, JP
8895 176 172 ISU Internet Services Unit ISU, SA
2907 623 165 SINET-AS Research Organization of Information a
1916 204 162 Rede Nacional de Ensino e Pesquisa, BR
18558 136 132 NETBLK-RCOEK, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
29955 UNALLOCATED 192.104.1.0/24 2495 KANREN, US
394784 UNALLOCATED 192.107.242.0/24 40831 PHS, US
29955 UNALLOCATED 198.252.8.0/21 2495 KANREN, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
394784 UNALLOCATED 205.166.145.0/24 40831 PHS, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/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/Internet2/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
103.151.24.0/24 Origin: 16509 AMAZON-02, US
103.151.24.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
192.31.196.0/24 Origin: 112 UNASSIGNED
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
192.107.242.0/24 Origin: 394784 UNASSIGNED
192.107.242.0/24 Transit: 40831 PHS, US
198.135.168.0/24 Origin: 14618 AMAZON-AES, US
198.135.168.0/24 Transit: 16509 AMAZON-02, US
Complete listing at https://bgp.nsrc.org/REN/Internet2/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 /11:3 /12:17
/13:24 /14:59 /15:174 /16:2092 /17:447 /18:466
/19:601 /20:975 /21:1006 /22:1577 /23:1720 /24:12729
/25:80 /26:68 /27:121 /28:1 /29:49 /30:0
/31:0 /32:2
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 718 2733 AMAZON-02, US
36914 188 202 KENET-AS, KE
14618 182 551 AMAZON-AES, US
8895 171 176 ISU Internet Services Unit ISU, SA
23024 53 56 OCDE, US
1 35 120 LVLT-1, US
327700 35 41 MoRENet, MZ
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
25977 31 45 HCCS, US
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:4 3:77 4:2 5:16 6:4 8:2
12:1 13:165 14:84 15:42 16:3 18:45
23:38 24:6 31:5 37:6 38:9 40:1
41:123 42:8 44:5 45:79 46:8 47:1
49:10 50:6 52:676 54:179 58:1 59:20
60:4 61:3 62:7 63:38 64:126 65:5
66:54 67:60 68:18 69:47 70:9 71:17
72:18 74:40 75:128 76:165 77:8 78:3
79:10 80:17 81:27 82:6 83:7 84:9
85:37 86:6 87:1 88:1 89:12 91:54
92:1 93:19 94:4 95:6 96:6 97:1
98:11 99:181 101:6 102:14 103:325 104:42
106:1 107:8 108:17 109:11 110:3 111:20
112:4 114:23 116:5 117:61 118:32 119:21
121:26 122:11 123:8 124:39 125:4 128:84
129:181 130:118 131:93 132:59 133:138 134:104
135:1 136:198 137:93 138:9 139:16 140:50
141:3 142:59 143:37 144:68 145:1 146:126
147:65 148:167 149:16 150:39 151:7 152:78
153:11 154:25 155:60 156:70 157:30 158:45
159:120 160:32 161:20 162:50 163:62 164:55
165:61 166:1 167:22 168:204 169:10 170:100
171:1 172:10 173:12 174:1 175:29 176:12
177:10 178:3 179:14 180:21 181:12 182:6
184:5 185:57 186:3 187:18 188:14 189:3
190:54 191:37 192:1485 193:257 194:122 195:89
196:149 197:110 198:500 199:311 200:254 201:39
202:638 203:425 204:346 205:201 206:203 207:189
208:89 209:133 210:184 211:14 212:172 213:15
214:7 216:143 217:14 218:25 219:8 220:17
222:5 223:2
End of report
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