IPv4 R&E Routing Table Report 17:15 GMT Sun 12 Feb, 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: 18207 Prefixes after maximum aggregation (per Origin AS): 10385 Deaggregation factor: 1.75 Unique aggregates announced (without unneeded subnets): 11603 Number of IPv4 prefixes with a valid ROA: 4347 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 13860 Total ASes present in the Internet Routing Table: 2658 Prefixes per ASN: 6.85 Origin-only ASes present in the Internet Routing Table: 2306 Origin ASes announcing only one prefix: 1030 Transit ASes present in the Internet Routing Table: 352 Transit-only ASes present in the Internet Routing Table: 51 Paths with bogon ASNs present in the IPv4 Routing Table: 1 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: 7 Number of instances of unregistered ASNs: 7 Number of 32-bit ASNs allocated by the RIRs: 41186 Number of 32-bit ASNs visible in the Routing Table: 617 Prefixes from 32-bit ASNs in the Routing Table: 1740 Number of bogon 32-bit ASNs visible in the Routing Table: 1 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 205435648 Equivalent to 12 /8s, 62 /16s and 179 /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: 1889 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4704 Total APNIC prefixes after maximum aggregation: 2282 APNIC Deaggregation factor: 2.06 Prefixes being announced from the APNIC address blocks: 4705 Unique aggregates announced from the APNIC address blocks: 2605 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: 246 APNIC Region transit ASes present in the Internet Routing Table: 60 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: 221 Number of APNIC addresses announced to Internet: 45894144 Equivalent to 2 /8s, 188 /16s and 74 /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: 7908 Total ARIN prefixes after maximum aggregation: 4711 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 7926 Unique aggregates announced from the ARIN address blocks: 5281 ARIN Region origin ASes present in the Internet Routing Table: 1229 ARIN Prefixes per ASN: 6.45 ARIN Region origin ASes announcing only one prefix: 435 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: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 185 Number of ARIN addresses announced to Internet: 95763456 Equivalent to 5 /8s, 181 /16s and 60 /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: 3233 Total RIPE prefixes after maximum aggregation: 2619 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3223 Unique aggregates announced from the RIPE address blocks: 2645 RIPE Region origin ASes present in the Internet Routing Table: 589 RIPE Prefixes per ASN: 5.47 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: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 122 Number of RIPE addresses announced to Internet: 57140992 Equivalent to 3 /8s, 103 /16s and 231 /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: 1333 Total LACNIC prefixes after maximum aggregation: 558 LACNIC Deaggregation factor: 2.39 Prefixes being announced from the LACNIC address blocks: 1329 Unique aggregates announced from the LACNIC address blocks: 777 LACNIC Region origin ASes present in the Internet Routing Table: 151 LACNIC Prefixes per ASN: 8.80 LACNIC Region origin ASes announcing only one prefix: 55 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 5.8 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 60 Number of LACNIC addresses announced to Internet: 3977728 Equivalent to 0 /8s, 60 /16s and 178 /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: 1022 Total AfriNIC prefixes after maximum aggregation: 208 AfriNIC Deaggregation factor: 4.91 Prefixes being announced from the AfriNIC address blocks: 1022 Unique aggregates announced from the AfriNIC address blocks: 293 AfriNIC Region origin ASes present in the Internet Routing Table: 54 AfriNIC Prefixes per ASN: 18.93 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 29 Number of AfriNIC addresses announced to Internet: 2658560 Equivalent to 0 /8s, 40 /16s and 145 /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 583 2157 462 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 4538 191 4192 73 ERX-CERNET-BKB China Education and Rese 1237 185 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 55824 118 18 11 NKN-CORE-NW NKN Core Network, IN 4621 69 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 668 218 698 179 DNIC-AS-00668, US 376 199 178 148 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 2152 149 507 93 CSUNET-NW, US 18558 133 18 4 NETBLK-RCOEK, 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 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 680 281 1919 249 DFN Verein zur Foerderung eines Deutsch 786 185 1772 180 JANET Jisc Services Limited, GB 8895 135 24 4 ISU Internet Services Unit ISU, SA 559 116 550 105 SWITCH Peering requests: peering@switch 1103 96 1518 85 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 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 158 208 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 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 1251 57 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 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 72 TENET-1, ZA 36914 250 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 43 28 3 RENU, UG 327700 35 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 37182 31 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 583 2157 462 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 375 319 72 TENET-1, ZA 680 281 1919 249 DFN Verein zur Foerderung eines Deutsch 36914 250 82 3 KENET-AS, KE 668 218 698 179 DNIC-AS-00668, US 376 199 178 148 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 4538 191 4192 73 ERX-CERNET-BKB China Education and Rese 786 185 1772 180 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 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 375 303 TENET-1, ZA 36914 250 247 KENET-AS, KE 5786 199 198 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 135 131 ISU Internet Services Unit ISU, SA 18558 133 129 NETBLK-RCOEK, US 4538 191 118 ERX-CERNET-BKB China Education and Research Net 1916 158 115 Rede Nacional de Ensino e Pesquisa, BR 55824 118 107 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 65591 UNALLOCATED 196.21.92.0/22 2018 TENET-1, ZA 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 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 /15:122 /16:2008 /17:415 /18:436 /19:547 /20:839 /21:834 /22:1433 /23:1496 /24:10008 /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 130 135 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 35 50 LONI, US 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 28614 30 36 Fundacao Universidade Regional de Blumenau, BR 37182 30 31 TERNET, TZ 200521 30 53 SEAP-AGE, ES 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 6:4 8:2 12:1 14:89 23:6 24:3 31:7 35:6 38:9 40:1 41:142 42:12 44:5 45:28 46:5 47:1 49:10 50:1 52:1 58:12 59:21 60:4 61:3 62:7 63:33 64:57 65:1 66:32 67:42 68:8 69:21 70:2 71:1 72:7 74:50 76:38 77:8 78:3 79:10 80:5 81:28 82:3 83:6 84:9 85:25 86:3 87:1 89:10 91:42 93:4 94:4 95:2 96:5 97:1 98:2 101:8 102:15 103:309 104:77 108:8 109:10 110:2 111:16 114:23 116:6 117:61 118:33 119:21 121:28 122:8 123:8 124:39 125:2 128:86 129:39 130:88 131:63 132:62 133:149 134:101 136:199 137:78 138:9 139:6 140:54 141:1 142:39 143:30 144:25 145:2 146:106 147:59 148:192 149:12 150:130 151:6 152:78 153:14 154:30 155:55 156:68 157:29 158:37 159:114 160:27 161:19 162:20 163:78 164:10 165:51 166:1 167:12 168:124 169:10 170:56 172:3 173:7 175:31 176:8 177:9 179:9 180:17 181:1 182:1 184:3 185:40 186:3 187:19 188:12 189:3 190:15 191:36 192:1450 193:328 194:122 195:88 196:161 197:153 198:489 199:275 200:221 201:35 202:625 203:417 204:346 205:130 206:186 207:165 208:65 209:114 210:186 211:18 212:168 213:2 214:8 216:88 217:10 218:3 219:12 220:16 222:6 223:9 End of report