IPv4 R&E Routing Table Report 17:15 GMT Sat 18 Jun, 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: 18227 Prefixes after maximum aggregation (per Origin AS): 10370 Deaggregation factor: 1.76 Unique aggregates announced (without unneeded subnets): 11570 Number of IPv4 prefixes with a valid ROA: 3971 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 14256 Total ASes present in the Internet Routing Table: 2667 Prefixes per ASN: 6.83 Origin-only ASes present in the Internet Routing Table: 2303 Origin ASes announcing only one prefix: 1053 Transit ASes present in the Internet Routing Table: 364 Transit-only ASes present in the Internet Routing Table: 54 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: 18 Max AS path prepend of ASN (211089) 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: 39613 Number of 32-bit ASNs visible in the Routing Table: 610 Prefixes from 32-bit ASNs in the Routing Table: 1705 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: 206671616 Equivalent to 12 /8s, 81 /16s and 143 /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: 1835 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4656 Total APNIC prefixes after maximum aggregation: 2278 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4657 Unique aggregates announced from the APNIC address blocks: 2579 APNIC Region origin ASes present in the Internet Routing Table: 582 APNIC Prefixes per ASN: 8.00 APNIC Region origin ASes announcing only one prefix: 254 APNIC Region transit ASes present in the Internet Routing Table: 67 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 228 Number of APNIC addresses announced to Internet: 46145536 Equivalent to 2 /8s, 192 /16s and 32 /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: 7966 Total ARIN prefixes after maximum aggregation: 4692 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 7985 Unique aggregates announced from the ARIN address blocks: 5287 ARIN Region origin ASes present in the Internet Routing Table: 1221 ARIN Prefixes per ASN: 6.54 ARIN Region origin ASes announcing only one prefix: 439 ARIN Region transit ASes present in the Internet Routing Table: 154 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: 173 Number of ARIN addresses announced to Internet: 96330496 Equivalent to 5 /8s, 189 /16s and 227 /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: 3246 Total RIPE prefixes after maximum aggregation: 2630 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3233 Unique aggregates announced from the RIPE address blocks: 2654 RIPE Region origin ASes present in the Internet Routing Table: 592 RIPE Prefixes per ASN: 5.46 RIPE Region origin ASes announcing only one prefix: 271 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: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 118 Number of RIPE addresses announced to Internet: 57283072 Equivalent to 3 /8s, 106 /16s and 18 /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: 1429 Total LACNIC prefixes after maximum aggregation: 565 LACNIC Deaggregation factor: 2.53 Prefixes being announced from the LACNIC address blocks: 1425 Unique aggregates announced from the LACNIC address blocks: 760 LACNIC Region origin ASes present in the Internet Routing Table: 165 LACNIC Prefixes per ASN: 8.64 LACNIC Region origin ASes announcing only one prefix: 66 LACNIC Region transit ASes present in the Internet Routing Table: 24 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: 66 Number of LACNIC addresses announced to Internet: 4254464 Equivalent to 0 /8s, 64 /16s and 235 /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: 925 Total AfriNIC prefixes after maximum aggregation: 200 AfriNIC Deaggregation factor: 4.62 Prefixes being announced from the AfriNIC address blocks: 925 Unique aggregates announced from the AfriNIC address blocks: 288 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 19.27 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2657536 Equivalent to 0 /8s, 40 /16s and 141 /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 571 2140 454 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 4538 189 4192 73 ERX-CERNET-BKB China Education and Rese 1237 187 74 135 KREONET-AS-KR KISTI, KR 7575 176 330 122 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 77 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 668 207 702 178 DNIC-AS-00668, US 376 204 178 153 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 151 507 90 CSUNET-NW, US 18558 131 18 4 NETBLK-RCOEK, US 270 120 329 88 AS270, US 23024 114 7 17 OCDE, US 2920 107 34 6 LACOE, US 32531 91 16 1 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 680 285 1967 251 DFN Verein zur Foerderung eines Deutsch 786 185 1772 180 JANET Jisc Services Limited, GB 8895 137 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 100 1520 87 SURFNET-NL SURFnet, The Netherlands, NL 2614 96 27 76 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 44 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 95 24 54 Red Universitaria Nacional, CL 1251 59 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 4270 42 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 28571 39 42 16 UNIVERSIDADE DE SAO PAULO, BR 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 375 319 73 TENET-1, ZA 36914 215 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 39 28 3 RENU, UG 327700 31 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 18 8 1 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 571 2140 454 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 2018 375 319 73 TENET-1, ZA 680 285 1967 251 DFN Verein zur Foerderung eines Deutsch 36914 215 82 3 KENET-AS, KE 668 207 702 178 DNIC-AS-00668, US 376 204 178 153 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 4538 189 4192 73 ERX-CERNET-BKB China Education and Rese 1237 187 74 135 KREONET-AS-KR KISTI, KR 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 375 302 TENET-1, ZA 36914 215 212 KENET-AS, KE 5786 200 199 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 137 133 ISU Internet Services Unit ISU, SA 18558 131 127 NETBLK-RCOEK, US 4538 189 116 ERX-CERNET-BKB China Education and Research Net 1916 158 114 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 /16:2032 /17:403 /18:436 /19:550 /20:836 /21:842 /22:1384 /23:1508 /24:10045 /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 202 215 KENET-AS, KE 8895 132 137 ISU Internet Services Unit ISU, SA 23024 53 114 OCDE, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 200521 31 52 SEAP-AGE, ES 32440 30 45 LONI, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, 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 14:85 18:46 23:7 24:3 31:7 35:4 37:6 38:9 40:1 41:122 42:12 44:5 45:34 46:6 47:1 49:10 50:1 52:1 58:10 59:21 60:4 61:3 62:7 63:34 64:51 66:35 67:43 68:8 69:19 70:2 71:1 72:9 74:18 76:33 77:8 78:3 79:10 80:4 81:28 82:3 83:6 84:9 85:24 86:4 87:1 88:1 89:10 91:41 93:10 94:4 95:5 96:5 97:1 98:2 101:8 102:13 103:307 104:76 108:8 109:10 110:4 111:16 114:23 116:7 117:61 118:33 119:24 121:27 122:8 123:8 124:39 125:2 128:90 129:38 130:93 131:71 132:58 133:145 134:98 136:200 137:75 138:9 139:5 140:49 141:1 142:41 143:31 144:25 145:2 146:130 147:59 148:191 149:12 150:130 151:5 152:77 153:13 154:29 155:50 156:66 157:31 158:44 159:116 160:26 161:21 162:20 163:60 164:19 165:57 166:2 167:16 168:122 169:10 170:49 172:2 173:7 175:31 176:8 177:11 179:10 180:21 181:1 182:4 184:5 185:38 186:3 187:19 188:12 189:5 190:33 191:36 192:1454 193:296 194:120 195:90 196:162 197:121 198:481 199:283 200:238 201:37 202:631 203:422 204:326 205:167 206:187 207:171 208:67 209:116 210:183 211:15 212:172 213:2 214:8 216:85 217:10 218:3 219:12 220:16 222:6 223:4 End of report