IPv4 R&E Routing Table Report 17:15 GMT Sun 16 Jul, 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: 18222 Prefixes after maximum aggregation (per Origin AS): 10268 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11379 Number of IPv4 prefixes with a valid ROA: 4890 Number of IPv4 prefixes with an invalid ROA: 1 Number of IPv4 prefixes with no ROA: 13331 Total ASes present in the Internet Routing Table: 2632 Prefixes per ASN: 6.92 Origin-only ASes present in the Internet Routing Table: 2270 Origin ASes announcing only one prefix: 1009 Transit ASes present in the Internet Routing Table: 362 Transit-only ASes present in the Internet Routing Table: 63 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: 20 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: 42256 Number of 32-bit ASNs visible in the Routing Table: 604 Prefixes from 32-bit ASNs in the Routing Table: 1837 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: 205212672 Equivalent to 12 /8s, 59 /16s and 76 /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: 1914 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4620 Total APNIC prefixes after maximum aggregation: 2226 APNIC Deaggregation factor: 2.08 Prefixes being announced from the APNIC address blocks: 4620 Unique aggregates announced from the APNIC address blocks: 2540 APNIC Region origin ASes present in the Internet Routing Table: 538 APNIC Prefixes per ASN: 8.59 APNIC Region origin ASes announcing only one prefix: 229 APNIC Region transit ASes present in the Internet Routing Table: 54 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: 201 Number of APNIC addresses announced to Internet: 45745408 Equivalent to 2 /8s, 186 /16s and 5 /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: 7845 Total ARIN prefixes after maximum aggregation: 4650 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 7859 Unique aggregates announced from the ARIN address blocks: 5155 ARIN Region origin ASes present in the Internet Routing Table: 1226 ARIN Prefixes per ASN: 6.41 ARIN Region origin ASes announcing only one prefix: 431 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: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 187 Number of ARIN addresses announced to Internet: 95274240 Equivalent to 5 /8s, 173 /16s and 197 /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: 3276 Total RIPE prefixes after maximum aggregation: 2646 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3265 Unique aggregates announced from the RIPE address blocks: 2673 RIPE Region origin ASes present in the Internet Routing Table: 589 RIPE Prefixes per ASN: 5.54 RIPE Region origin ASes announcing only one prefix: 262 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: 57300480 Equivalent to 3 /8s, 106 /16s and 86 /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: 1404 Total LACNIC prefixes after maximum aggregation: 573 LACNIC Deaggregation factor: 2.45 Prefixes being announced from the LACNIC address blocks: 1402 Unique aggregates announced from the LACNIC address blocks: 786 LACNIC Region origin ASes present in the Internet Routing Table: 165 LACNIC Prefixes per ASN: 8.50 LACNIC Region origin ASes announcing only one prefix: 63 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: 68 Number of LACNIC addresses announced to Internet: 4235008 Equivalent to 0 /8s, 64 /16s and 159 /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: 1074 Total AfriNIC prefixes after maximum aggregation: 170 AfriNIC Deaggregation factor: 6.32 Prefixes being announced from the AfriNIC address blocks: 1073 Unique aggregates announced from the AfriNIC address blocks: 222 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 21.90 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 9 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: 25 Number of AfriNIC addresses announced to Internet: 2656512 Equivalent to 0 /8s, 40 /16s and 137 /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 594 2147 465 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 4538 197 4192 73 ERX-CERNET-BKB China Education and Rese 1237 190 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 122 18 14 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 668 217 636 180 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 196 16 1 UPRENET, PR 2152 137 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 128 521 31 NCREN, US 270 117 329 82 AS270, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 21976 84 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 786 185 1764 180 JANET Jisc Services Limited, GB 8895 136 24 5 ISU Internet Services Unit ISU, SA 559 112 533 104 SWITCH Peering requests: peering@switch 1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 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 219 176 41 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 103 24 47 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 48 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 3596 34 4 3 Universidad Autonoma Metropolitana, MX 271640 34 8 1 UNIVERSIDADE FEDERAL DE VICOSA, 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 370 319 72 TENET-1, ZA 36914 253 82 3 KENET-AS, KE 327687 163 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 39 16 1 MoRENet, MZ 37215 37 8 1 MAREN, MW 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 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 594 2147 465 SINET-AS Research Organization of Infor 7497 434 180 23 CSTNET-AS-AP Computer Network Informati 2018 370 319 72 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 36914 253 82 3 KENET-AS, KE 1916 219 176 41 Rede Nacional de Ensino e Pesquisa, BR 668 217 636 180 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 4538 197 4192 73 ERX-CERNET-BKB China Education and Rese 5786 196 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 370 298 TENET-1, ZA 36914 253 250 KENET-AS, KE 5786 196 195 UPRENET, PR 1916 219 178 Rede Nacional de Ensino e Pesquisa, BR 58647 178 176 KAGAWAU-AS Kagawa University, JP 327687 163 160 RENU, UG 8895 136 131 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 4538 197 124 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 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 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 /16:2006 /17:422 /18:436 /19:558 /20:826 /21:827 /22:1430 /23:1486 /24:10041 /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 241 253 KENET-AS, KE 8895 131 136 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 37 59 LONI, US 327700 33 39 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 37215 31 37 MAREN, MW 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 14:89 23:6 24:3 31:7 35:2 38:9 40:1 41:140 42:13 44:6 45:36 46:5 47:1 49:9 50:1 52:1 58:12 59:20 60:4 61:3 62:7 63:33 64:57 65:1 66:33 67:41 68:8 69:19 70:2 71:1 72:7 74:50 76:40 77:8 78:3 79:10 80:5 81:26 82:4 83:6 84:9 85:29 86:9 87:1 89:10 91:43 93:4 94:4 95:2 96:5 97:1 98:2 101:4 102:31 103:248 104:80 108:8 109:9 110:1 111:16 114:23 116:6 117:61 118:33 119:18 121:29 122:8 123:8 124:38 125:2 128:87 129:38 130:87 131:55 132:60 133:155 134:104 136:196 137:132 138:9 139:5 140:52 141:1 142:39 143:21 144:25 145:2 146:132 147:57 148:192 149:12 150:43 151:10 152:136 153:14 154:31 155:63 156:67 157:23 158:37 159:115 160:27 161:24 162:20 163:78 164:10 165:46 166:1 167:13 168:124 169:8 170:65 172:3 173:6 175:27 176:8 177:4 179:12 180:15 181:1 182:1 184:3 185:48 186:3 187:17 188:12 189:3 190:18 191:13 192:1444 193:281 194:120 195:72 196:202 197:162 198:481 199:284 200:283 201:38 202:631 203:426 204:349 205:127 206:184 207:168 208:70 209:116 210:184 211:3 212:165 213:2 214:8 216:86 217:10 218:3 219:12 220:16 222:3 223:14 End of report