IPv4 R&E Routing Table Report 17:15 GMT Mon 04 Mar, 2024 IPv4 BGP Table (R&E) as seen at Janet. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Janet/ Analysis Summary ---------------- BGP routing table entries examined: 18202 Prefixes after maximum aggregation (per Origin AS): 10308 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11415 Number of IPv4 prefixes with a valid ROA: 5635 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 12567 Total ASes present in the Internet Routing Table: 2641 Prefixes per ASN: 6.89 Origin-only ASes present in the Internet Routing Table: 2288 Origin ASes announcing only one prefix: 1015 Transit ASes present in the Internet Routing Table: 353 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: 4.7 Max AS path length visible: 15 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 43762 Number of 32-bit ASNs visible in the Routing Table: 623 Prefixes from 32-bit ASNs in the Routing Table: 1960 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: 1 Number of addresses announced to Internet: 202106368 Equivalent to 12 /8s, 11 /16s and 230 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 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: 1805 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4629 Total APNIC prefixes after maximum aggregation: 2249 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4629 Unique aggregates announced from the APNIC address blocks: 2566 APNIC Region origin ASes present in the Internet Routing Table: 538 APNIC Prefixes per ASN: 8.60 APNIC Region origin ASes announcing only one prefix: 231 APNIC Region transit ASes present in the Internet Routing Table: 55 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: 206 Number of APNIC addresses announced to Internet: 45539840 Equivalent to 2 /8s, 182 /16s and 226 /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: 7931 Total ARIN prefixes after maximum aggregation: 4664 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 7956 Unique aggregates announced from the ARIN address blocks: 5189 ARIN Region origin ASes present in the Internet Routing Table: 1236 ARIN Prefixes per ASN: 6.44 ARIN Region origin ASes announcing only one prefix: 432 ARIN Region transit ASes present in the Internet Routing Table: 155 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 194 Number of ARIN addresses announced to Internet: 92693504 Equivalent to 5 /8s, 134 /16s and 100 /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: 3261 Total RIPE prefixes after maximum aggregation: 2640 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3248 Unique aggregates announced from the RIPE address blocks: 2665 RIPE Region origin ASes present in the Internet Routing Table: 591 RIPE Prefixes per ASN: 5.50 RIPE Region origin ASes announcing only one prefix: 266 RIPE Region transit ASes present in the Internet Routing Table: 95 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 127 Number of RIPE addresses announced to Internet: 57038080 Equivalent to 3 /8s, 102 /16s and 85 /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: 1389 Total LACNIC prefixes after maximum aggregation: 571 LACNIC Deaggregation factor: 2.43 Prefixes being announced from the LACNIC address blocks: 1387 Unique aggregates announced from the LACNIC address blocks: 769 LACNIC Region origin ASes present in the Internet Routing Table: 166 LACNIC Prefixes per ASN: 8.36 LACNIC Region origin ASes announcing only one prefix: 61 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 5.8 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 69 Number of LACNIC addresses announced to Internet: 4222720 Equivalent to 0 /8s, 64 /16s and 111 /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: 981 Total AfriNIC prefixes after maximum aggregation: 175 AfriNIC Deaggregation factor: 5.61 Prefixes being announced from the AfriNIC address blocks: 981 Unique aggregates announced from the AfriNIC address blocks: 225 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 20.02 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: 3.7 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2611968 Equivalent to 0 /8s, 39 /16s and 219 /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 591 2162 464 SINET-AS Research Organization of Infor 7497 441 180 23 CSTNET-AS-AP Computer Network Informati 1237 192 74 142 KREONET-AS-KR KISTI, KR 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 4538 181 4193 75 ERX-CERNET-BKB China Education and Rese 7575 173 329 116 AARNET-AS-AP Australian Academic and Re 55824 129 19 19 NKN-CORE-NW NKN Core Network, IN 4762 71 4 1 MAHIDOL-BORDER-AS Mahidol University, T 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T Complete listing at https://bgp.nsrc.org/REN/Janet/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 198 16 1 UPRENET, PR 2152 144 507 93 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 81 126 521 30 NCREN, US 270 117 328 81 AS270, US 23024 106 7 27 OCDE, US 2920 102 34 7 LACOE, US 1736 79 16 1 MU-AS, US Complete listing at https://bgp.nsrc.org/REN/Janet/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 786 183 1764 178 JANET Jisc Services Limited, GB 8895 134 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch 1103 95 1503 83 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 2200 63 598 58 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/Janet/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 49 16 2 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 44 99 34 Fundacao Carlos Chagas Filho de Amparo 61468 43 3 14 CEDIA, EC 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/Janet/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 377 319 71 TENET-1, ZA 36914 202 82 3 KENET-AS, KE 327687 163 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/Janet/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 591 2162 464 SINET-AS Research Organization of Infor 7497 441 180 23 CSTNET-AS-AP Computer Network Informati 2018 377 319 71 TENET-1, ZA 680 284 1899 250 DFN Verein zur Foerderung eines Deutsch 668 203 648 172 DNIC-AS-00668, US 36914 202 82 3 KENET-AS, KE 376 201 162 151 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 1237 192 74 142 KREONET-AS-KR KISTI, KR 786 183 1764 178 JANET Jisc Services Limited, GB Complete listing at https://bgp.nsrc.org/REN/Janet/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 377 306 TENET-1, ZA 36914 202 199 KENET-AS, KE 5786 198 197 UPRENET, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 327687 163 160 RENU, UG 18558 136 132 NETBLK-RCOEK, US 8895 134 129 ISU Internet Services Unit ISU, SA 55824 129 110 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/Janet/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 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 11570 UNALLOCATED 204.134.85.0/24 40498 ABQG, US Complete listing at https://bgp.nsrc.org/REN/Janet/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/Janet/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 /10:1 /11:1 /12:10 /13:19 /14:35 /15:121 /16:2011 /17:423 /18:443 /19:552 /20:825 /21:845 /22:1454 /23:1479 /24:9982 /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 189 202 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 23024 52 106 OCDE, US 327700 39 45 MoRENet, MZ 32440 38 62 LONI, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 32 54 SEAP-AGE, ES 25977 30 44 HCCS, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US Complete listing at https://bgp.nsrc.org/REN/Janet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:7 6:4 8:2 12:1 14:89 23:5 24:3 31:1 35:6 38:8 40:1 41:120 42:13 44:7 45:36 46:5 47:1 49:9 50:1 52:1 58:10 59:20 60:6 61:3 62:6 63:32 64:44 65:1 66:47 67:41 68:10 69:17 70:2 71:1 72:7 74:51 76:41 77:8 78:3 79:10 80:5 81:26 82:3 83:6 84:7 85:26 86:3 87:1 89:10 91:43 93:5 94:2 95:2 96:5 97:1 98:2 101:5 102:38 103:268 104:73 108:8 109:7 111:16 114:24 116:8 117:61 118:34 119:19 121:28 122:8 123:8 124:42 125:3 128:86 129:37 130:83 131:65 132:59 133:157 134:110 136:197 137:138 138:57 139:5 140:38 141:3 142:38 143:23 144:25 145:2 146:135 147:56 148:194 149:12 150:43 151:11 152:132 153:14 154:30 155:63 156:67 157:18 158:35 159:115 160:30 161:15 162:20 163:81 164:14 165:47 166:1 167:13 168:118 169:7 170:90 172:3 173:7 175:25 176:8 177:6 179:12 180:15 181:1 182:1 184:2 185:48 186:3 187:17 188:12 189:3 190:17 191:13 192:1469 193:253 194:120 195:70 196:198 197:117 198:472 199:277 200:272 201:37 202:616 203:420 204:351 205:129 206:180 207:144 208:72 209:113 210:194 211:15 212:162 213:2 214:8 216:83 217:10 218:3 219:5 220:17 222:3 223:14 End of report