IPv4 R&E Routing Table Report 17:15 GMT Sun 27 Aug, 2023 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: 18247 Prefixes after maximum aggregation (per Origin AS): 10278 Deaggregation factor: 1.78 Unique aggregates announced (without unneeded subnets): 11381 Number of IPv4 prefixes with a valid ROA: 4959 Number of IPv4 prefixes with an invalid ROA: 1 Number of IPv4 prefixes with no ROA: 13287 Total ASes present in the Internet Routing Table: 2639 Prefixes per ASN: 6.91 Origin-only ASes present in the Internet Routing Table: 2274 Origin ASes announcing only one prefix: 1013 Transit ASes present in the Internet Routing Table: 365 Transit-only ASes present in the Internet Routing Table: 66 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: 16 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 3 Number of instances of unregistered ASNs: 3 Number of 32-bit ASNs allocated by the RIRs: 42515 Number of 32-bit ASNs visible in the Routing Table: 611 Prefixes from 32-bit ASNs in the Routing Table: 1905 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: 3 Number of addresses announced to Internet: 205171968 Equivalent to 12 /8s, 58 /16s and 173 /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: 99.5 Total number of prefixes smaller than registry allocations: 1890 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4646 Total APNIC prefixes after maximum aggregation: 2257 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4645 Unique aggregates announced from the APNIC address blocks: 2566 APNIC Region origin ASes present in the Internet Routing Table: 540 APNIC Prefixes per ASN: 8.60 APNIC Region origin ASes announcing only one prefix: 230 APNIC Region transit ASes present in the Internet Routing Table: 57 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: 45682688 Equivalent to 2 /8s, 185 /16s and 16 /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: 7793 Total ARIN prefixes after maximum aggregation: 4628 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 7806 Unique aggregates announced from the ARIN address blocks: 5123 ARIN Region origin ASes present in the Internet Routing Table: 1223 ARIN Prefixes per ASN: 6.38 ARIN Region origin ASes announcing only one prefix: 431 ARIN Region transit ASes present in the Internet Routing Table: 157 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN region 32-bit ASNs visible in the Routing Table: 187 Number of ARIN addresses announced to Internet: 95214336 Equivalent to 5 /8s, 172 /16s and 219 /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: 3275 Total RIPE prefixes after maximum aggregation: 2644 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3264 Unique aggregates announced from the RIPE address blocks: 2677 RIPE Region origin ASes present in the Internet Routing Table: 590 RIPE Prefixes per ASN: 5.53 RIPE Region origin ASes announcing only one prefix: 263 RIPE Region transit ASes present in the Internet Routing Table: 100 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 123 Number of RIPE addresses announced to Internet: 57310720 Equivalent to 3 /8s, 106 /16s and 126 /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: 1466 Total LACNIC prefixes after maximum aggregation: 575 LACNIC Deaggregation factor: 2.55 Prefixes being announced from the LACNIC address blocks: 1465 Unique aggregates announced from the LACNIC address blocks: 788 LACNIC Region origin ASes present in the Internet Routing Table: 167 LACNIC Prefixes per ASN: 8.77 LACNIC Region origin ASes announcing only one prefix: 64 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 5.7 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 70 Number of LACNIC addresses announced to Internet: 4236544 Equivalent to 0 /8s, 64 /16s and 165 /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: 1064 Total AfriNIC prefixes after maximum aggregation: 171 AfriNIC Deaggregation factor: 6.22 Prefixes being announced from the AfriNIC address blocks: 1064 Unique aggregates announced from the AfriNIC address blocks: 224 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 20.86 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 3.8 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: 2661632 Equivalent to 0 /8s, 40 /16s and 157 /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 590 2146 464 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 4538 201 4193 75 ERX-CERNET-BKB China Education and Rese 1237 191 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 55824 124 18 17 NKN-CORE-NW NKN Core Network, IN 4621 69 37 9 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 61 4 1 MAHIDOL-BORDER-AS Mahidol 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 668 204 652 173 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 2152 143 507 92 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US 270 118 329 82 AS270, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 21976 82 51 18 NJEDGE-NET, 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 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 786 184 1764 179 JANET Jisc Services Limited, GB 8895 136 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 93 27 73 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 74 465 74 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 64 599 59 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 1916 221 176 42 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 48 Red Universitaria Nacional, CL 271640 73 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo 4270 49 16 1 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 61468 43 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 34 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 370 319 71 TENET-1, ZA 36914 259 82 3 KENET-AS, KE 327687 166 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 41 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 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 590 2146 464 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 2018 370 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 36914 259 82 3 KENET-AS, KE 1916 221 176 42 Rede Nacional de Ensino e Pesquisa, BR 668 204 652 173 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 4538 201 4193 75 ERX-CERNET-BKB China Education and Rese 5786 197 16 1 UPRENET, PR 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 434 411 CSTNET-AS-AP Computer Network Information Cente 2018 370 299 TENET-1, ZA 36914 259 256 KENET-AS, KE 5786 197 196 UPRENET, PR 1916 221 179 Rede Nacional de Ensino e Pesquisa, BR 58647 178 176 KAGAWAU-AS Kagawa University, JP 327687 166 163 RENU, UG 18558 136 132 NETBLK-RCOEK, US 8895 136 131 ISU Internet Services Unit ISU, SA 4538 201 126 ERX-CERNET-BKB China Education and Research Net 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 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/Janet/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW 134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /10:2 /11:1 /12:10 /13:19 /14:35 /15:122 /16:2011 /17:422 /18:426 /19:550 /20:823 /21:825 /22:1436 /23:1480 /24:10084 /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 247 259 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 37 59 LONI, US 327700 35 41 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 32 55 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 14:88 23:6 24:3 31:7 35:2 38:9 40:1 41:120 42:13 44:6 45:37 46:5 47:1 49:9 50:1 52:1 58:12 59:20 60:4 61:3 62:7 63:33 64:51 65:1 66:36 67:41 68:8 69:19 70:2 71:1 72:7 74:42 76:40 77:8 78:3 79:10 80:5 81:26 82:3 83:6 84:9 85:28 86:9 87:1 89:10 91:44 93:4 94:4 95:2 96:5 97:1 98:2 101:5 102:37 103:263 104:80 108:8 109:9 110:1 111:16 114:23 116:6 117:61 118:33 119:18 121:29 122:8 123:8 124:39 125:2 128:87 129:40 130:86 131:59 132:59 133:152 134:105 136:196 137:131 138:10 139:5 140:40 141:1 142:38 143:21 144:25 145:2 146:131 147:57 148:192 149:12 150:43 151:11 152:138 153:14 154:31 155:63 156:67 157:18 158:35 159:115 160:29 161:24 162:20 163:80 164:10 165:46 166:1 167:13 168:121 169:8 170:68 172:3 173:6 175:26 176:8 177:5 179:12 180:15 181:1 182:1 184:3 185:48 186:3 187:17 188:12 189:3 190:19 191:13 192:1440 193:278 194:120 195:71 196:203 197:164 198:481 199:283 200:340 201:38 202:625 203:426 204:350 205:127 206:188 207:167 208:70 209:115 210:189 211:14 212:168 213:2 214:8 216:84 217:9 218:3 219:11 220:16 222:3 223:14 End of report