IPv4 R&E Routing Table Report 17:15 GMT Mon 27 May, 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: 17989 Prefixes after maximum aggregation (per Origin AS): 10210 Deaggregation factor: 1.76 Unique aggregates announced (without unneeded subnets): 11251 Number of IPv4 prefixes with a valid ROA: 5456 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 12533 Total ASes present in the Internet Routing Table: 2601 Prefixes per ASN: 6.92 Origin-only ASes present in the Internet Routing Table: 2249 Origin ASes announcing only one prefix: 1008 Transit ASes present in the Internet Routing Table: 352 Transit-only ASes present in the Internet Routing Table: 64 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 15 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 2 Number of instances of unregistered ASNs: 2 Number of 32-bit ASNs allocated by the RIRs: 44590 Number of 32-bit ASNs visible in the Routing Table: 601 Prefixes from 32-bit ASNs in the Routing Table: 1680 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: 201565184 Equivalent to 12 /8s, 3 /16s and 164 /24s Percentage of available address space announced: 5.4 Percentage of allocated address space announced: 5.4 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: 1847 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4567 Total APNIC prefixes after maximum aggregation: 2234 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4567 Unique aggregates announced from the APNIC address blocks: 2509 APNIC Region origin ASes present in the Internet Routing Table: 536 APNIC Prefixes per ASN: 8.52 APNIC Region origin ASes announcing only one prefix: 231 APNIC Region transit ASes present in the Internet Routing Table: 56 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 204 Number of APNIC addresses announced to Internet: 45499904 Equivalent to 2 /8s, 182 /16s and 70 /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: 8172 Total ARIN prefixes after maximum aggregation: 4731 ARIN Deaggregation factor: 1.73 Prefixes being announced from the ARIN address blocks: 8187 Unique aggregates announced from the ARIN address blocks: 5238 ARIN Region origin ASes present in the Internet Routing Table: 1248 ARIN Prefixes per ASN: 6.56 ARIN Region origin ASes announcing only one prefix: 441 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: 201 Number of ARIN addresses announced to Internet: 92704768 Equivalent to 5 /8s, 134 /16s and 144 /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, 393216-402332 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: 3243 Total RIPE prefixes after maximum aggregation: 2619 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3232 Unique aggregates announced from the RIPE address blocks: 2640 RIPE Region origin ASes present in the Internet Routing Table: 591 RIPE Prefixes per ASN: 5.47 RIPE Region origin ASes announcing only one prefix: 267 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: 130 Number of RIPE addresses announced to Internet: 57007104 Equivalent to 3 /8s, 101 /16s and 220 /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: 1149 Total LACNIC prefixes after maximum aggregation: 473 LACNIC Deaggregation factor: 2.43 Prefixes being announced from the LACNIC address blocks: 1146 Unique aggregates announced from the LACNIC address blocks: 664 LACNIC Region origin ASes present in the Internet Routing Table: 129 LACNIC Prefixes per ASN: 8.88 LACNIC Region origin ASes announcing only one prefix: 53 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 54 Number of LACNIC addresses announced to Internet: 3922432 Equivalent to 0 /8s, 59 /16s and 218 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 856 Total AfriNIC prefixes after maximum aggregation: 151 AfriNIC Deaggregation factor: 5.67 Prefixes being announced from the AfriNIC address blocks: 856 Unique aggregates announced from the AfriNIC address blocks: 199 AfriNIC Region origin ASes present in the Internet Routing Table: 32 AfriNIC Prefixes per ASN: 26.75 AfriNIC Region origin ASes announcing only one prefix: 16 AfriNIC Region transit ASes present in the Internet Routing Table: 8 Average AfriNIC Region AS path length visible: 3.6 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 12 Number of AfriNIC addresses announced to Internet: 2430720 Equivalent to 0 /8s, 37 /16s and 23 /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 588 2159 461 SINET-AS Research Organization of Infor 7497 440 180 24 CSTNET-AS-AP Computer Network Informati 1237 189 74 142 KREONET-AS-KR KISTI, KR 4538 189 4193 75 ERX-CERNET-BKB China Education and Rese 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 115 AARNET-AS-AP Australian Academic and Re 55824 131 19 19 NKN-CORE-NW NKN Core Network, IN 9411 82 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T 4621 70 37 10 UNINET-AS-AP UNINET-, TH 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 668 204 648 173 DNIC-AS-00668, US 376 203 162 152 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 2920 177 34 7 LACOE, US 270 162 345 88 AS270, US 2152 150 507 94 CSUNET-NW, US 18558 140 18 4 NETBLK-RCOEK, US 81 133 517 33 NCREN, US 23024 108 7 22 OCDE, US 237 87 543 51 MERIT-AS-14, 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 680 282 1899 249 DFN Verein zur Foerderung eines Deutsch 786 186 1764 181 JANET Jisc Services Limited, GB 8895 132 24 5 ISU Internet Services Unit ISU, SA 559 113 533 103 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 153 10 67 Universidad Juarez Autonoma de Tabasco, 1916 139 176 42 Rede Nacional de Ensino e Pesquisa, BR 11340 104 24 51 Red Universitaria Nacional, CL 271640 65 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 46 99 35 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 3596 35 4 3 Universidad Autonoma Metropolitana, MX 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 380 319 71 TENET-1, ZA 36914 244 82 3 KENET-AS, KE 8094 47 48 18 PUKNET, ZA 327700 43 16 1 MoRENet, MZ 37215 36 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37654 14 1 8 RwEdNet-AS, RW 37182 12 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA 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 588 2159 461 SINET-AS Research Organization of Infor 7497 440 180 24 CSTNET-AS-AP Computer Network Informati 2018 380 319 71 TENET-1, ZA 680 282 1899 249 DFN Verein zur Foerderung eines Deutsch 36914 244 82 3 KENET-AS, KE 668 204 648 173 DNIC-AS-00668, US 376 203 162 152 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 1237 189 74 142 KREONET-AS-KR KISTI, KR 4538 189 4193 75 ERX-CERNET-BKB China Education and Rese 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 440 416 CSTNET-AS-AP Computer Network Information Cente 2018 380 309 TENET-1, ZA 36914 244 241 KENET-AS, KE 5786 198 197 UPRENET, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 2920 177 170 LACOE, US 18558 140 136 NETBLK-RCOEK, US 8895 132 127 ISU Internet Services Unit ISU, SA 4538 189 114 ERX-CERNET-BKB China Education and Research Net 55824 131 112 NKN-CORE-NW NKN Core Network, IN 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 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, 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 /16:2010 /17:422 /18:449 /19:559 /20:830 /21:828 /22:1403 /23:1454 /24:9846 /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 231 244 KENET-AS, KE 8895 127 132 ISU Internet Services Unit ISU, SA 23024 51 108 OCDE, US 32440 38 64 LONI, US 327700 38 43 MoRENet, MZ 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 37215 30 36 MAREN, MW 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 14:91 23:4 24:3 31:1 35:3 38:10 40:1 41:194 42:12 44:5 45:35 46:5 47:1 49:9 50:3 52:1 58:16 59:20 60:6 61:3 62:6 63:32 64:44 65:1 66:46 67:41 68:10 69:18 70:2 71:1 72:7 74:51 76:41 77:8 78:3 79:10 80:5 81:26 82:4 83:6 84:7 85:24 86:3 87:1 89:11 91:44 93:5 94:2 95:2 96:5 97:1 98:2 101:4 102:5 103:260 104:76 108:8 109:8 114:24 116:8 117:61 118:35 119:21 121:12 122:8 123:8 124:41 125:2 128:88 129:35 130:84 131:62 132:66 133:157 134:109 136:197 137:51 138:57 139:5 140:38 141:3 142:26 143:25 144:25 145:2 146:134 147:63 148:194 149:11 150:41 151:8 152:136 153:14 154:32 155:63 156:140 157:21 158:35 159:119 160:30 161:17 162:20 163:58 164:14 165:48 166:1 167:13 168:104 169:6 170:19 172:3 173:6 175:18 176:8 177:4 179:9 180:15 181:1 182:1 184:6 185:48 186:3 187:18 188:11 189:3 190:17 191:13 192:1471 193:252 194:115 195:70 196:155 197:113 198:468 199:273 200:206 201:37 202:610 203:426 204:366 205:135 206:195 207:206 208:72 209:113 210:189 211:15 212:160 213:3 214:8 216:92 217:10 218:3 219:5 220:17 222:3 223:14 End of report