IPv4 R&E Routing Table Report 17:15 GMT Tue 21 Mar, 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: 18341 Prefixes after maximum aggregation (per Origin AS): 10363 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11567 Number of IPv4 prefixes with a valid ROA: 4498 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 13843 Total ASes present in the Internet Routing Table: 2659 Prefixes per ASN: 6.90 Origin-only ASes present in the Internet Routing Table: 2305 Origin ASes announcing only one prefix: 1037 Transit ASes present in the Internet Routing Table: 354 Transit-only ASes present in the Internet Routing Table: 50 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: 20 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 4 Number of instances of unregistered ASNs: 4 Number of 32-bit ASNs allocated by the RIRs: 41481 Number of 32-bit ASNs visible in the Routing Table: 623 Prefixes from 32-bit ASNs in the Routing Table: 1759 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: 2 Number of addresses announced to Internet: 205053184 Equivalent to 12 /8s, 56 /16s and 221 /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: 1896 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4704 Total APNIC prefixes after maximum aggregation: 2288 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4705 Unique aggregates announced from the APNIC address blocks: 2601 APNIC Region origin ASes present in the Internet Routing Table: 578 APNIC Prefixes per ASN: 8.14 APNIC Region origin ASes announcing only one prefix: 251 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 224 Number of APNIC addresses announced to Internet: 45873408 Equivalent to 2 /8s, 187 /16s and 249 /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: 7947 Total ARIN prefixes after maximum aggregation: 4690 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 7960 Unique aggregates announced from the ARIN address blocks: 5246 ARIN Region origin ASes present in the Internet Routing Table: 1228 ARIN Prefixes per ASN: 6.48 ARIN Region origin ASes announcing only one prefix: 435 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: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 185 Number of ARIN addresses announced to Internet: 95378176 Equivalent to 5 /8s, 175 /16s and 91 /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: 3234 Total RIPE prefixes after maximum aggregation: 2614 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3224 Unique aggregates announced from the RIPE address blocks: 2645 RIPE Region origin ASes present in the Internet Routing Table: 590 RIPE Prefixes per ASN: 5.46 RIPE Region origin ASes announcing only one prefix: 268 RIPE Region transit ASes present in the Internet Routing Table: 94 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: 124 Number of RIPE addresses announced to Internet: 57143296 Equivalent to 3 /8s, 103 /16s and 240 /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: 1415 Total LACNIC prefixes after maximum aggregation: 561 LACNIC Deaggregation factor: 2.52 Prefixes being announced from the LACNIC address blocks: 1414 Unique aggregates announced from the LACNIC address blocks: 782 LACNIC Region origin ASes present in the Internet Routing Table: 158 LACNIC Prefixes per ASN: 8.95 LACNIC Region origin ASes announcing only one prefix: 58 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 5.7 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 4008192 Equivalent to 0 /8s, 61 /16s and 41 /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: 1037 Total AfriNIC prefixes after maximum aggregation: 206 AfriNIC Deaggregation factor: 5.03 Prefixes being announced from the AfriNIC address blocks: 1036 Unique aggregates announced from the AfriNIC address blocks: 291 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 19.92 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2649344 Equivalent to 0 /8s, 40 /16s and 109 /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 593 2157 463 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 4538 192 4192 73 ERX-CERNET-BKB China Education and Rese 1237 189 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 55824 117 18 10 NKN-CORE-NW NKN Core Network, IN 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 65 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 5786 199 16 1 UPRENET, PR 376 198 178 148 RISQ-AS, CA 668 190 604 163 DNIC-AS-00668, US 2152 148 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, 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 1919 249 DFN Verein zur Foerderung eines Deutsch 786 185 1772 180 JANET Jisc Services Limited, GB 8895 137 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 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 220 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 47 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 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 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 72 TENET-1, ZA 36914 250 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 61 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 33 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 37182 32 8 1 TERNET, TZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 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 593 2157 463 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 380 319 72 TENET-1, ZA 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 36914 250 82 3 KENET-AS, KE 1916 220 208 43 Rede Nacional de Ensino e Pesquisa, BR 5786 199 16 1 UPRENET, PR 376 198 178 148 RISQ-AS, CA 4538 192 4192 73 ERX-CERNET-BKB China Education and Rese 668 190 604 163 DNIC-AS-00668, US 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 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 380 308 TENET-1, ZA 36914 250 247 KENET-AS, KE 5786 199 198 UPRENET, PR 1916 220 177 Rede Nacional de Ensino e Pesquisa, BR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 137 132 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 4538 192 119 ERX-CERNET-BKB China Education and Research Net 55824 117 107 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA 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 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 20965 GEANT The GEANT IP Service, NL 192.31.196.0/24 Origin: 112 UNASSIGNED 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 /10:2 /11:1 /12:10 /13:19 /14:36 /15:121 /16:2010 /17:408 /18:437 /19:543 /20:825 /21:832 /22:1440 /23:1494 /24:10162 /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 237 250 KENET-AS, KE 8895 132 137 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 36 58 LONI, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 37182 31 32 TERNET, TZ 200521 31 53 SEAP-AGE, ES 25977 30 44 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/Janet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:7 8:2 12:1 14:89 23:4 24:3 31:7 35:6 38:9 40:1 41:139 42:12 44:5 45:32 46:5 47:1 49:6 50:1 52:1 58:12 59:21 60:4 61:3 62:7 63:33 64:53 65:1 66:33 67:42 68:8 69:19 70:2 71:1 72:7 74:50 76:42 77:8 78:3 79:10 80:5 81:28 82:4 83:6 84:9 85:25 86:3 87:1 89:10 91:41 93:4 94:4 95:2 96:5 97:1 98:2 101:8 102:16 103:300 104:81 108:8 109:10 110:2 111:16 114:23 116:6 117:61 118:33 119:21 121:29 122:8 123:8 124:39 125:2 128:86 129:39 130:87 131:61 132:49 133:157 134:100 136:199 137:91 138:10 139:6 140:48 141:1 142:38 143:29 144:25 145:2 146:133 147:57 148:192 149:12 150:130 151:8 152:144 153:14 154:29 155:55 156:66 157:24 158:37 159:115 160:27 161:20 162:20 163:76 164:10 165:51 166:1 167:16 168:125 169:10 170:63 172:3 173:7 175:31 176:8 177:9 179:10 180:15 181:1 182:1 184:3 185:42 186:3 187:18 188:12 189:3 190:18 191:36 192:1444 193:328 194:121 195:89 196:169 197:153 198:485 199:277 200:274 201:38 202:628 203:429 204:348 205:129 206:186 207:162 208:66 209:116 210:186 211:17 212:169 213:2 214:8 216:86 217:10 218:3 219:12 220:16 222:6 223:9 End of report