IPv4 R&E Routing Table Report 21:05 GMT Fri 31 Dec, 2021 BGP Table (R&E) as seen at AARNET (Brisbane). Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/AARNET-Brisbane/ Analysis Summary ---------------- BGP routing table entries examined: 17183 Prefixes after maximum aggregation (per Origin AS): 9970 Deaggregation factor: 1.72 Unique aggregates announced (without unneeded subnets): 11018 Total ASes present in the Internet Routing Table: 2563 Prefixes per ASN: 6.70 Origin-only ASes present in the Internet Routing Table: 2211 Origin ASes announcing only one prefix: 1032 Transit ASes present in the Internet Routing Table: 352 Transit-only ASes present in the Internet Routing Table: 46 Average AS path length visible in the Internet Routing Table: 4.0 Max AS path length visible: 14 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 2 Number of instances of unregistered ASNs: 2 Number of 32-bit ASNs allocated by the RIRs: 38215 Number of 32-bit ASNs visible in the Routing Table: 572 Prefixes from 32-bit ASNs in the Routing Table: 1590 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: 0 Number of addresses announced to Internet: 199980544 Equivalent to 11 /8s, 235 /16s and 118 /24s Percentage of available address space announced: 5.4 Percentage of allocated address space announced: 5.4 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 1737 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4428 Total APNIC prefixes after maximum aggregation: 2194 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4433 Unique aggregates announced from the APNIC address blocks: 2448 APNIC Region origin ASes present in the Internet Routing Table: 510 APNIC Prefixes per ASN: 8.69 APNIC Region origin ASes announcing only one prefix: 225 APNIC Region transit ASes present in the Internet Routing Table: 55 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 189 Number of APNIC addresses announced to Internet: 45516544 Equivalent to 2 /8s, 182 /16s and 135 /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: 7105 Total ARIN prefixes after maximum aggregation: 4238 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 7111 Unique aggregates announced from the ARIN address blocks: 4697 ARIN Region origin ASes present in the Internet Routing Table: 1116 ARIN Prefixes per ASN: 6.37 ARIN Region origin ASes announcing only one prefix: 394 ARIN Region transit ASes present in the Internet Routing Table: 147 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 148 Number of ARIN addresses announced to Internet: 89593088 Equivalent to 5 /8s, 87 /16s and 21 /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: 3371 Total RIPE prefixes after maximum aggregation: 2754 RIPE Deaggregation factor: 1.22 Prefixes being announced from the RIPE address blocks: 3361 Unique aggregates announced from the RIPE address blocks: 2764 RIPE Region origin ASes present in the Internet Routing Table: 664 RIPE Prefixes per ASN: 5.06 RIPE Region origin ASes announcing only one prefix: 321 RIPE Region transit ASes present in the Internet Routing Table: 102 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 134 Number of RIPE addresses announced to Internet: 58095872 Equivalent to 3 /8s, 118 /16s and 121 /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: 1450 Total LACNIC prefixes after maximum aggregation: 589 LACNIC Deaggregation factor: 2.46 Prefixes being announced from the LACNIC address blocks: 1451 Unique aggregates announced from the LACNIC address blocks: 806 LACNIC Region origin ASes present in the Internet Routing Table: 174 LACNIC Prefixes per ASN: 8.34 LACNIC Region origin ASes announcing only one prefix: 69 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 75 Number of LACNIC addresses announced to Internet: 4052224 Equivalent to 0 /8s, 61 /16s and 213 /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: 827 Total AfriNIC prefixes after maximum aggregation: 193 AfriNIC Deaggregation factor: 4.28 Prefixes being announced from the AfriNIC address blocks: 827 Unique aggregates announced from the AfriNIC address blocks: 303 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 16.22 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 8 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2722816 Equivalent to 0 /8s, 41 /16s and 140 /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 610 2156 457 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 7575 350 330 126 AARNET-AS-AP Australian Academic and Re 1237 185 74 135 KREONET-AS-KR KISTI, KR 58647 165 18 2 KAGAWAU-AS Kagawa University, JP 55824 129 19 23 NKN-CORE-NW NKN Core Network, IN 4538 127 4192 72 ERX-CERNET-BKB China Education and Rese 24313 80 16 1 NSW-DET-AS NSW Department of Education, 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 1659 54 1450 34 ERX-TANET-ASN1 Taiwan Academic Network Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 212 702 180 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 146 507 87 CSUNET-NW, US 18558 135 18 4 NETBLK-RCOEK, US 2920 108 34 6 LACOE, US 21976 85 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 3 76 496 15 MIT-GATEWAYS, US 3477 72 71 42 NOAA-NWAVE, US Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 142 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 97 1520 84 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 72 449 72 BELWUE BelWue-Koordination, DE 2200 67 647 61 FR-RENATER Reseau National de telecommu 2614 58 33 56 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 176 207 41 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 4270 44 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 349 319 74 TENET-1, ZA 36914 127 81 6 KENET-AS, KE 2561 72 5 31 EUN, EG 8094 50 48 4 PUKNET, ZA 327700 44 16 1 MoRENet, MZ 327687 38 28 3 RENU, UG 6879 24 2 9 ENSTINET-, EG 37182 13 8 1 TERNET, TZ 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 610 2156 457 SINET-AS Research Organization of Infor 7497 433 182 24 CSTNET-AS-AP Computer Network Informati 7575 350 330 126 AARNET-AS-AP Australian Academic and Re 2018 349 319 74 TENET-1, ZA 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 668 212 702 180 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 786 186 1774 183 JANET Jisc Services Limited, GB 1237 185 74 135 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/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 349 275 TENET-1, ZA 7575 350 224 AARNET-AS-AP Australian Academic and Research N 5786 200 199 UPRENET, PR 58647 165 163 KAGAWAU-AS Kagawa University, JP 8895 142 138 ISU Internet Services Unit ISU, SA 1916 176 135 Rede Nacional de Ensino e Pesquisa, BR 18558 135 131 NETBLK-RCOEK, US 36914 127 121 KENET-AS, KE 55824 129 106 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/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 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-badAS 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 /13:17 /14:34 /15:122 /16:1944 /17:382 /18:427 /19:519 /20:831 /21:876 /22:1361 /23:1442 /24:9214 /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 8895 137 142 ISU Internet Services Unit ISU, SA 36914 118 127 KENET-AS, KE 23024 53 56 OCDE, US 327700 38 44 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 44 LONI, US 200521 29 48 SEAP-AGE, ES Complete listing at https://bgp.nsrc.org/REN/AARNET-Brisbane/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 6:4 8:2 12:1 14:84 18:42 23:7 24:3 31:6 37:6 38:9 41:65 42:7 44:5 45:38 46:6 47:1 49:8 50:1 52:1 59:4 60:4 61:3 62:6 63:34 64:27 66:34 67:43 68:8 69:20 72:12 74:19 76:33 77:7 78:3 79:10 80:17 81:27 82:5 83:7 84:6 85:33 86:4 87:1 88:1 89:10 91:46 92:1 93:19 94:4 95:5 96:5 97:1 98:2 101:6 102:14 103:254 104:14 106:1 107:1 108:5 109:10 110:3 111:16 112:4 113:1 114:23 116:5 117:61 118:2 119:22 121:26 124:39 125:3 128:106 129:36 130:93 131:77 132:55 133:139 134:103 136:194 137:213 138:21 139:15 140:50 141:2 142:40 143:35 144:25 145:2 146:124 147:33 148:159 149:13 150:37 151:6 152:71 153:86 154:26 155:51 156:66 157:26 158:42 159:117 160:25 161:17 162:26 163:65 164:46 165:54 166:1 167:16 168:147 169:9 170:51 171:1 172:2 173:1 175:31 176:8 177:13 178:1 179:11 180:21 181:3 182:8 184:3 185:36 186:3 187:18 188:13 189:3 190:46 191:36 192:1262 193:248 194:133 195:93 196:147 197:106 198:415 199:259 200:255 201:39 202:397 203:314 204:310 205:163 206:177 207:168 208:55 209:103 210:181 211:14 212:172 213:4 214:7 216:56 217:14 218:25 219:8 220:17 222:5 223:3 End of report