[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon Jul 4 22:05:41 UTC 2022
IPv4 R&E Routing Table Report 22:05 GMT Mon 04 Jul, 2022
IPv4 BGP Table (R&E) as seen at CENIC.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/
Analysis Summary
----------------
BGP routing table entries examined: 22072
Prefixes after maximum aggregation (per Origin AS): 12441
Deaggregation factor: 1.77
Unique aggregates announced (without unneeded subnets): 14361
Number of IPv4 prefixes with a valid ROA: 7475
Number of IPv4 prefixes with an invalid ROA: 21
Number of IPv4 prefixes with no ROA: 14576
Total ASes present in the Internet Routing Table: 2730
Prefixes per ASN: 8.08
Origin-only ASes present in the Internet Routing Table: 2354
Origin ASes announcing only one prefix: 1074
Transit ASes present in the Internet Routing Table: 376
Transit-only ASes present in the Internet Routing Table: 61
Paths with bogon ASNs present in the IPv4 Routing Table: 2
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 16
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: 39733
Number of 32-bit ASNs visible in the Routing Table: 620
Prefixes from 32-bit ASNs in the Routing Table: 1666
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: 5
Number of addresses announced to Internet: 288042496
Equivalent to 17 /8s, 43 /16s and 46 /24s
Percentage of available address space announced: 7.8
Percentage of allocated address space announced: 7.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 2583
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4630
Total APNIC prefixes after maximum aggregation: 2296
APNIC Deaggregation factor: 2.02
Prefixes being announced from the APNIC address blocks: 4712
Unique aggregates announced from the APNIC address blocks: 2693
APNIC Region origin ASes present in the Internet Routing Table: 586
APNIC Prefixes per ASN: 8.04
APNIC Region origin ASes announcing only one prefix: 260
APNIC Region transit ASes present in the Internet Routing Table: 70
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 230
Number of APNIC addresses announced to Internet: 46731008
Equivalent to 2 /8s, 201 /16s and 15 /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: 11820
Total ARIN prefixes after maximum aggregation: 6703
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 11588
Unique aggregates announced from the ARIN address blocks: 7724
ARIN Region origin ASes present in the Internet Routing Table: 1266
ARIN Prefixes per ASN: 9.15
ARIN Region origin ASes announcing only one prefix: 449
ARIN Region transit ASes present in the Internet Routing Table: 162
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 178
Number of ARIN addresses announced to Internet: 174329344
Equivalent to 10 /8s, 100 /16s and 14 /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: 3284
Total RIPE prefixes after maximum aggregation: 2671
RIPE Deaggregation factor: 1.23
Prefixes being announced from the RIPE address blocks: 3433
Unique aggregates announced from the RIPE address blocks: 2884
RIPE Region origin ASes present in the Internet Routing Table: 599
RIPE Prefixes per ASN: 5.73
RIPE Region origin ASes announcing only one prefix: 275
RIPE Region transit ASes present in the Internet Routing Table: 91
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 121
Number of RIPE addresses announced to Internet: 59364608
Equivalent to 3 /8s, 137 /16s and 213 /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: 1420
Total LACNIC prefixes after maximum aggregation: 566
LACNIC Deaggregation factor: 2.51
Prefixes being announced from the LACNIC address blocks: 1420
Unique aggregates announced from the LACNIC address blocks: 766
LACNIC Region origin ASes present in the Internet Routing Table: 165
LACNIC Prefixes per ASN: 8.61
LACNIC Region origin ASes announcing only one prefix: 66
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66
Number of LACNIC addresses announced to Internet: 4831488
Equivalent to 0 /8s, 73 /16s and 185 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 912
Total AfriNIC prefixes after maximum aggregation: 199
AfriNIC Deaggregation factor: 4.58
Prefixes being announced from the AfriNIC address blocks: 914
Unique aggregates announced from the AfriNIC address blocks: 289
AfriNIC Region origin ASes present in the Internet Routing Table: 48
AfriNIC Prefixes per ASN: 19.04
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 3.8
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: 2784768
Equivalent to 0 /8s, 42 /16s and 126 /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 572 2140 454 SINET-AS Research Organization of Infor
7497 433 182 24 CSTNET-AS-AP Computer Network Informati
1237 187 74 135 KREONET-AS-KR KISTI, KR
7575 176 330 122 AARNET-AS-AP Australian Academic and Re
58647 175 18 2 KAGAWAU-AS Kagawa University, JP
4538 128 4192 73 ERX-CERNET-BKB China Education and Rese
55824 116 18 11 NKN-CORE-NW NKN Core Network, IN
4621 78 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/CENIC/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 2564 4355 1088 AMAZON-02, US
14618 614 3990 469 AMAZON-AES, US
8075 232 10847 202 MICROSOFT-CORP-MSN-AS-BLOCK, US
668 211 702 179 DNIC-AS-00668, US
376 203 178 152 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
2152 154 507 90 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
270 121 329 86 AS270, US
23024 114 7 17 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 285 1967 251 DFN Verein zur Foerderung eines Deutsch
786 187 1775 184 JANET Jisc Services Limited, GB
8895 138 24 4 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 99 1520 86 SURFNET-NL SURFnet, The Netherlands, NL
2614 96 27 76 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 73 449 73 BELWUE BelWue-Koordination, DE
2200 64 599 59 FR-RENATER Reseau National de telecommu
1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 158 208 44 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 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
4270 42 16 1 Red de Interconexion Universitaria, AR
28571 41 40 18 UNIVERSIDADE DE SAO PAULO, BR
61468 41 3 15 CEDIA, EC
28614 37 2 2 Fundacao Universidade Regional de Blume
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 355 319 72 TENET-1, ZA
36914 222 82 3 KENET-AS, KE
2561 67 4 32 EUN, EG
8094 48 48 15 PUKNET, ZA
327687 38 28 3 RENU, UG
327700 33 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 18 8 1 TERNET, TZ
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 2564 4355 1088 AMAZON-02, US
14618 614 3990 469 AMAZON-AES, US
2907 572 2140 454 SINET-AS Research Organization of Infor
7497 433 182 24 CSTNET-AS-AP Computer Network Informati
2018 355 319 72 TENET-1, ZA
680 285 1967 251 DFN Verein zur Foerderung eines Deutsch
8075 232 10847 202 MICROSOFT-CORP-MSN-AS-BLOCK, US
36914 222 82 3 KENET-AS, KE
668 211 702 179 DNIC-AS-00668, US
376 203 178 152 RISQ-AS, CA
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 433 409 CSTNET-AS-AP Computer Network Information Cente
2018 355 283 TENET-1, ZA
36914 222 219 KENET-AS, KE
5786 200 199 UPRENET, PR
58647 175 173 KAGAWAU-AS Kagawa University, JP
14618 614 145 AMAZON-AES, US
8895 138 134 ISU Internet Services Unit ISU, SA
18558 134 130 NETBLK-RCOEK, US
2907 572 118 SINET-AS Research Organization of Information a
1916 158 114 Rede Nacional de Ensino e Pesquisa, BR
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS
Prefixes from the Special Purpose Address Registry (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/CENIC/data-spar
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: 2152 CSUNET-NW, 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
198.135.168.0/24 Origin: 14618 AMAZON-AES, US
198.135.168.0/24 Transit: 16509 AMAZON-02, US
216.169.147.0/24 Origin: 14618 AMAZON-AES, US
216.169.147.0/24 Transit: 16509 AMAZON-02, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/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 /10:4 /11:7 /12:28
/13:34 /14:80 /15:198 /16:2143 /17:468 /18:473
/19:606 /20:992 /21:964 /22:1562 /23:1709 /24:12803
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
16509 369 2564 AMAZON-02, US
36914 209 222 KENET-AS, KE
14618 205 614 AMAZON-AES, US
8895 133 138 ISU Internet Services Unit ISU, SA
23024 53 114 OCDE, US
25977 31 45 HCCS, US
28614 31 37 Fundacao Universidade Regional de Blumenau, BR
46115 31 34 LUTHER, US
32440 30 45 LONI, US
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 3:81 4:2 5:16 6:4 8:2
12:1 13:99 14:86 15:63 16:2 18:55
23:45 24:3 31:7 35:10 37:7 38:9
40:3 41:122 42:10 44:5 45:46 46:10
47:1 49:10 50:11 52:733 54:236 58:2
59:20 60:4 61:3 62:11 63:42 64:141
65:13 66:74 67:62 68:17 69:45 70:27
71:8 72:18 74:74 76:39 77:9 78:4
79:10 80:11 81:27 82:3 83:6 84:4
85:31 86:4 87:2 88:1 89:12 91:52
93:10 94:4 95:4 96:6 97:1 98:13
99:51 101:6 102:13 103:343 104:106 107:18
108:20 109:12 110:4 111:18 113:1 114:23
115:1 116:6 117:61 118:32 119:24 121:27
122:11 123:8 124:39 125:4 128:86 129:44
130:145 131:79 132:58 133:145 134:99 135:1
136:213 137:88 138:10 139:17 140:51 141:5
142:58 143:35 144:35 145:4 146:131 147:67
148:201 149:15 150:138 151:8 152:82 153:13
154:29 155:64 156:68 157:34 158:50 159:157
160:31 161:31 162:56 163:71 164:25 165:65
166:1 167:23 168:149 169:12 170:129 172:10
173:19 174:1 175:31 176:12 177:11 178:3
179:11 180:21 181:1 182:4 184:5 185:65
186:3 187:19 188:13 189:5 190:34 191:36
192:1520 193:307 194:116 195:81 196:156 197:129
198:537 199:332 200:238 201:38 202:639 203:440
204:366 205:199 206:217 207:196 208:117 209:139
210:185 211:13 212:154 213:13 214:8 216:149
217:10 218:22 219:6 220:17 222:5 223:3
End of report
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