[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun Mar 3 22:20:35 UTC 2024
IPv4 R&E Routing Table Report 22:20 GMT Sun 03 Mar, 2024
IPv4 BGP Table (R&E) as seen at ESnet.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ESnet/
Analysis Summary
----------------
BGP routing table entries examined: 18488
Prefixes after maximum aggregation (per Origin AS): 10646
Deaggregation factor: 1.74
Unique aggregates announced (without unneeded subnets): 11767
Number of IPv4 prefixes with a valid ROA: 5660
Number of IPv4 prefixes with an invalid ROA: 45
Number of IPv4 prefixes with no ROA: 12783
Total ASes present in the Internet Routing Table: 2728
Prefixes per ASN: 6.78
Origin-only ASes present in the Internet Routing Table: 2374
Origin ASes announcing only one prefix: 1057
Transit ASes present in the Internet Routing Table: 354
Transit-only ASes present in the Internet Routing Table: 59
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 14
Max AS path prepend of ASN ( 47805) 11
Prefixes from unregistered ASNs in the Routing Table: 14
Number of instances of unregistered ASNs: 14
Number of 32-bit ASNs allocated by the RIRs: 43760
Number of 32-bit ASNs visible in the Routing Table: 638
Prefixes from 32-bit ASNs in the Routing Table: 1951
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: 176445952
Equivalent to 10 /8s, 132 /16s and 90 /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: 99.6
Total number of prefixes smaller than registry allocations: 2015
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4240
Total APNIC prefixes after maximum aggregation: 2149
APNIC Deaggregation factor: 1.97
Prefixes being announced from the APNIC address blocks: 4241
Unique aggregates announced from the APNIC address blocks: 2425
APNIC Region origin ASes present in the Internet Routing Table: 493
APNIC Prefixes per ASN: 8.60
APNIC Region origin ASes announcing only one prefix: 216
APNIC Region transit ASes present in the Internet Routing Table: 44
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 186
Number of APNIC addresses announced to Internet: 35455744
Equivalent to 2 /8s, 29 /16s and 3 /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, 131072-153913
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: 8436
Total ARIN prefixes after maximum aggregation: 4962
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 8455
Unique aggregates announced from the ARIN address blocks: 5530
ARIN Region origin ASes present in the Internet Routing Table: 1310
ARIN Prefixes per ASN: 6.45
ARIN Region origin ASes announcing only one prefix: 465
ARIN Region transit ASes present in the Internet Routing Table: 165
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 215
Number of ARIN addresses announced to Internet: 80303872
Equivalent to 4 /8s, 201 /16s and 87 /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: 3491
Total RIPE prefixes after maximum aggregation: 2821
RIPE Deaggregation factor: 1.24
Prefixes being announced from the RIPE address blocks: 3486
Unique aggregates announced from the RIPE address blocks: 2875
RIPE Region origin ASes present in the Internet Routing Table: 663
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 298
RIPE Region transit ASes present in the Internet Routing Table: 97
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 147
Number of RIPE addresses announced to Internet: 53977344
Equivalent to 3 /8s, 55 /16s and 161 /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
196608-216475
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: 1330
Total LACNIC prefixes after maximum aggregation: 529
LACNIC Deaggregation factor: 2.51
Prefixes being announced from the LACNIC address blocks: 1329
Unique aggregates announced from the LACNIC address blocks: 714
LACNIC Region origin ASes present in the Internet Routing Table: 152
LACNIC Prefixes per ASN: 8.74
LACNIC Region origin ASes announcing only one prefix: 53
LACNIC Region transit ASes present in the Internet Routing Table: 24
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 64
Number of LACNIC addresses announced to Internet: 4093440
Equivalent to 0 /8s, 62 /16s and 118 /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: 977
Total AfriNIC prefixes after maximum aggregation: 173
AfriNIC Deaggregation factor: 5.65
Prefixes being announced from the AfriNIC address blocks: 977
Unique aggregates announced from the AfriNIC address blocks: 223
AfriNIC Region origin ASes present in the Internet Routing Table: 48
AfriNIC Prefixes per ASN: 20.35
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 8
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26
Number of AfriNIC addresses announced to Internet: 2615552
Equivalent to 0 /8s, 39 /16s and 233 /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 587 2161 462 SINET-AS Research Organization of Infor
7497 441 180 23 CSTNET-AS-AP Computer Network Informati
1237 187 74 139 KREONET-AS-KR KISTI, KR
58647 182 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 329 116 AARNET-AS-AP Australian Academic and Re
55824 129 19 18 NKN-CORE-NW NKN Core Network, IN
4538 111 2384 69 ERX-CERNET-BKB China Education and Rese
4762 71 4 1 MAHIDOL-BORDER-AS Mahidol University, T
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
4621 65 37 10 UNINET-AS-AP UNINET-, TH
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
668 203 648 172 DNIC-AS-00668, US
376 201 162 151 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
2152 146 507 95 CSUNET-NW, US
18558 136 18 4 NETBLK-RCOEK, US
81 125 473 31 NCREN, US
270 114 328 78 AS270, US
23024 106 7 27 OCDE, US
2920 102 34 7 LACOE, US
237 89 544 54 MERIT-AS-14, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 284 1899 250 DFN Verein zur Foerderung eines Deutsch
786 184 1767 181 JANET Jisc Services Limited, GB
8895 133 24 4 ISU Internet Services Unit ISU, SA
559 114 533 104 SWITCH Peering requests: peering at switch
1103 94 1247 82 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 27 73 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol
553 78 462 78 BELWUE BelWue-Koordination, DE
3267 77 44 68 RUNNET, RU
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28391 154 10 67 Universidad Juarez Autonoma de Tabasco,
1916 149 176 42 Rede Nacional de Ensino e Pesquisa, BR
11340 108 25 51 Red Universitaria Nacional, CL
271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 48 16 1 Red de Interconexion Universitaria, AR
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
61468 43 3 14 CEDIA, EC
2715 42 99 32 Fundacao Carlos Chagas Filho de Amparo
28614 38 2 2 Fundacao Universidade Regional de Blume
1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 376 319 71 TENET-1, ZA
36914 203 82 3 KENET-AS, KE
327687 161 28 3 RENU, UG
8094 47 48 18 PUKNET, ZA
327700 45 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
37654 11 1 6 RwEdNet-AS, RW
37215 9 8 1 MAREN, MW
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 587 2161 462 SINET-AS Research Organization of Infor
7497 441 180 23 CSTNET-AS-AP Computer Network Informati
2018 376 319 71 TENET-1, ZA
680 284 1899 250 DFN Verein zur Foerderung eines Deutsch
668 203 648 172 DNIC-AS-00668, US
36914 203 82 3 KENET-AS, KE
376 201 162 151 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
1237 187 74 139 KREONET-AS-KR KISTI, KR
786 184 1767 181 JANET Jisc Services Limited, GB
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 441 418 CSTNET-AS-AP Computer Network Information Cente
2018 376 305 TENET-1, ZA
36914 203 200 KENET-AS, KE
5786 197 196 UPRENET, PR
58647 182 180 KAGAWAU-AS Kagawa University, JP
327687 161 158 RENU, UG
18558 136 132 NETBLK-RCOEK, US
8895 133 129 ISU Internet Services Unit ISU, SA
55824 129 111 NKN-CORE-NW NKN Core Network, IN
1916 149 107 Rede Nacional de Ensino e Pesquisa, BR
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
11570 UNALLOCATED 63.225.1.0/24 40498 ABQG, US
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US
11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.188.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.189.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.190.0/24 40498 ABQG, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/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 /9:0 /10:0 /11:0 /12:0
/13:0 /14:35 /15:121 /16:2021 /17:428 /18:445
/19:579 /20:862 /21:883 /22:1496 /23:1548 /24:10070
/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
36914 190 203 KENET-AS, KE
8895 128 133 ISU Internet Services Unit ISU, SA
23024 52 106 OCDE, US
327700 39 45 MoRENet, MZ
32440 38 62 LONI, US
3267 35 77 RUNNET, RU
18632 34 66 VOLCANO-VISION, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
200521 32 54 SEAP-AGE, ES
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 6:4 8:5 12:2 14:90
18:44 23:8 24:3 31:1 35:8 38:10
40:1 41:120 42:10 44:6 45:39 46:5
47:1 49:7 50:7 52:1 59:3 60:6
61:3 62:8 63:37 64:44 65:19 66:58
67:44 68:21 69:17 70:2 71:1 72:7
74:53 76:42 77:11 78:3 79:9 80:12
81:26 82:5 83:7 84:7 85:43 86:1
87:1 89:11 91:43 92:2 93:5 94:2
95:2 97:3 98:2 101:2 102:39 103:214
104:74 107:16 108:8 109:4 114:24 116:6
117:61 118:1 119:19 121:11 123:8 124:42
125:5 128:86 129:44 130:86 131:65 132:59
133:156 134:110 136:196 137:138 138:57 139:5
140:42 141:3 142:34 143:23 144:27 145:2
146:135 147:59 148:195 149:12 150:40 151:14
152:130 153:13 154:30 155:63 156:67 157:18
158:35 159:115 160:34 161:16 162:30 163:72
164:13 165:49 166:2 167:13 168:118 169:7
170:104 171:1 172:3 173:7 174:1 175:17
177:5 179:8 180:15 181:1 182:1 184:2
185:50 186:3 187:17 188:14 189:3 190:17
191:12 192:1498 193:258 194:124 195:64 196:195
197:118 198:488 199:295 200:265 201:36 202:560
203:402 204:372 205:132 206:193 207:162 208:78
209:122 210:182 211:13 212:169 213:4 214:8
216:95 217:10 218:22 219:5 220:17 222:2
223:4
End of report
More information about the ren-bgp-stats-all
mailing list