IPv4 R&E Routing Table Report 17:15 GMT Mon 05 Sep, 2022 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: 18241 Prefixes after maximum aggregation (per Origin AS): 10434 Deaggregation factor: 1.75 Unique aggregates announced (without unneeded subnets): 11655 Number of IPv4 prefixes with a valid ROA: 4094 Number of IPv4 prefixes with an invalid ROA: 36 Number of IPv4 prefixes with no ROA: 14111 Total ASes present in the Internet Routing Table: 2687 Prefixes per ASN: 6.79 Origin-only ASes present in the Internet Routing Table: 2320 Origin ASes announcing only one prefix: 1056 Transit ASes present in the Internet Routing Table: 367 Transit-only ASes present in the Internet Routing Table: 61 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: 18 Max AS path prepend of ASN ( 1149) 11 Prefixes from unregistered ASNs in the Routing Table: 5 Number of instances of unregistered ASNs: 5 Number of 32-bit ASNs allocated by the RIRs: 40131 Number of 32-bit ASNs visible in the Routing Table: 629 Prefixes from 32-bit ASNs in the Routing Table: 1771 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 206659072 Equivalent to 12 /8s, 81 /16s and 94 /24s Percentage of available address space announced: 5.6 Percentage of allocated address space announced: 5.6 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: 1877 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4652 Total APNIC prefixes after maximum aggregation: 2294 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4653 Unique aggregates announced from the APNIC address blocks: 2595 APNIC Region origin ASes present in the Internet Routing Table: 589 APNIC Prefixes per ASN: 7.90 APNIC Region origin ASes announcing only one prefix: 261 APNIC Region transit ASes present in the Internet Routing Table: 66 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 232 Number of APNIC addresses announced to Internet: 46094848 Equivalent to 2 /8s, 191 /16s and 90 /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: 7976 Total ARIN prefixes after maximum aggregation: 4733 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 7989 Unique aggregates announced from the ARIN address blocks: 5318 ARIN Region origin ASes present in the Internet Routing Table: 1232 ARIN Prefixes per ASN: 6.48 ARIN Region origin ASes announcing only one prefix: 439 ARIN Region transit ASes present in the Internet Routing Table: 156 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: 183 Number of ARIN addresses announced to Internet: 96458496 Equivalent to 5 /8s, 191 /16s and 215 /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: 3207 Total RIPE prefixes after maximum aggregation: 2604 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3196 Unique aggregates announced from the RIPE address blocks: 2633 RIPE Region origin ASes present in the Internet Routing Table: 586 RIPE Prefixes per ASN: 5.45 RIPE Region origin ASes announcing only one prefix: 269 RIPE Region transit ASes present in the Internet Routing Table: 93 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 118 Number of RIPE addresses announced to Internet: 57189632 Equivalent to 3 /8s, 104 /16s and 165 /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: 1440 Total LACNIC prefixes after maximum aggregation: 583 LACNIC Deaggregation factor: 2.47 Prefixes being announced from the LACNIC address blocks: 1440 Unique aggregates announced from the LACNIC address blocks: 797 LACNIC Region origin ASes present in the Internet Routing Table: 164 LACNIC Prefixes per ASN: 8.78 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 26 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: 69 Number of LACNIC addresses announced to Internet: 4284160 Equivalent to 0 /8s, 65 /16s and 95 /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: 961 Total AfriNIC prefixes after maximum aggregation: 215 AfriNIC Deaggregation factor: 4.47 Prefixes being announced from the AfriNIC address blocks: 961 Unique aggregates announced from the AfriNIC address blocks: 310 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 19.22 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2631424 Equivalent to 0 /8s, 40 /16s and 39 /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 567 2156 456 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 4538 188 4192 73 ERX-CERNET-BKB China Education and Rese 1237 186 74 135 KREONET-AS-KR KISTI, KR 7575 175 329 121 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 55824 114 18 10 NKN-CORE-NW NKN Core Network, IN 4621 78 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 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 668 221 703 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 151 507 91 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 114 7 17 OCDE, US 2920 108 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US 21976 85 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 680 282 1951 250 DFN Verein zur Foerderung eines Deutsch 786 186 1772 181 JANET Jisc Services Limited, GB 8895 138 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 98 1520 86 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 2200 64 599 59 FR-RENATER Reseau National de telecommu 1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol 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 158 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 54 Red Universitaria Nacional, CL 2715 59 102 39 Fundacao Carlos Chagas Filho de Amparo 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 44 16 1 Red de Interconexion Universitaria, AR 61468 42 3 15 CEDIA, EC 28571 41 40 18 UNIVERSIDADE DE SAO PAULO, BR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28614 37 2 2 Fundacao Universidade Regional de Blume 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 376 319 73 TENET-1, ZA 36914 240 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 41 28 3 RENU, UG 327700 34 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 20 1 14 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, 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 567 2156 456 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 376 319 73 TENET-1, ZA 680 282 1951 250 DFN Verein zur Foerderung eines Deutsch 36914 240 82 3 KENET-AS, KE 668 221 703 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 4538 188 4192 73 ERX-CERNET-BKB China Education and Rese 786 186 1772 181 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 433 409 CSTNET-AS-AP Computer Network Information Cente 2018 376 303 TENET-1, ZA 36914 240 237 KENET-AS, KE 5786 200 199 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 138 134 ISU Internet Services Unit ISU, SA 18558 137 133 NETBLK-RCOEK, US 4538 188 115 ERX-CERNET-BKB China Education and Research Net 1916 158 115 Rede Nacional de Ensino e Pesquisa, BR 55824 114 104 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 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/Janet/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/Janet/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Transit: 20965 GEANT The GEANT IP Service, 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 /15:122 /16:2030 /17:405 /18:439 /19:557 /20:835 /21:845 /22:1384 /23:1500 /24:10055 /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 227 240 KENET-AS, KE 8895 133 138 ISU Internet Services Unit ISU, SA 23024 53 114 OCDE, US 32440 32 47 LONI, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 200521 31 52 SEAP-AGE, ES 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 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) ---------------------------------------------- 1:3 5:7 6:4 8:2 12:1 14:86 18:43 23:6 24:3 31:7 35:4 38:9 40:1 41:130 42:12 44:5 45:31 46:5 47:1 49:10 50:1 52:1 58:10 59:21 60:4 61:3 62:9 63:34 64:51 65:1 66:34 67:43 68:8 69:19 70:2 71:1 72:7 74:50 76:36 77:7 78:3 79:10 80:4 81:28 82:2 83:6 84:9 85:24 86:3 87:1 88:1 89:10 91:40 93:4 94:4 95:4 96:5 97:1 98:2 101:8 102:15 103:311 104:74 108:8 109:10 110:4 111:16 114:23 116:6 117:61 118:33 119:23 121:29 122:8 123:8 124:39 125:2 128:86 129:38 130:90 131:76 132:59 133:145 134:99 136:200 137:74 138:11 139:5 140:61 141:1 142:39 143:31 144:25 145:2 146:130 147:58 148:191 149:12 150:130 151:5 152:78 153:14 154:28 155:51 156:67 157:25 158:40 159:116 160:26 161:20 162:20 163:75 164:10 165:53 166:1 167:16 168:120 169:10 170:57 172:2 173:7 175:30 176:8 177:11 179:10 180:18 181:1 182:4 184:2 185:38 186:3 187:19 188:12 189:3 190:34 191:36 192:1446 193:297 194:120 195:89 196:163 197:144 198:483 199:274 200:226 201:38 202:633 203:424 204:349 205:124 206:188 207:168 208:65 209:120 210:184 211:13 212:173 213:2 214:8 216:86 217:10 218:3 219:12 220:17 222:6 223:6 End of report