IPv4 R&E Routing Table Report 22:10 GMT Tue 14 Feb, 2023 IPv4 BGP Table (R&E) as seen at CEDIA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 24844 Prefixes after maximum aggregation (per Origin AS): 12368 Deaggregation factor: 2.01 Unique aggregates announced (without unneeded subnets): 14036 Number of IPv4 prefixes with a valid ROA: 10561 Number of IPv4 prefixes with an invalid ROA: 221 Number of IPv4 prefixes with no ROA: 14062 Total ASes present in the Internet Routing Table: 2768 Prefixes per ASN: 8.98 Origin-only ASes present in the Internet Routing Table: 2385 Origin ASes announcing only one prefix: 1046 Transit ASes present in the Internet Routing Table: 383 Transit-only ASes present in the Internet Routing Table: 67 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: 6 Number of instances of unregistered ASNs: 6 Number of 32-bit ASNs allocated by the RIRs: 41188 Number of 32-bit ASNs visible in the Routing Table: 640 Prefixes from 32-bit ASNs in the Routing Table: 4439 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: 4 Number of addresses announced to Internet: 243180933 Equivalent to 14 /8s, 126 /16s and 165 /24s Percentage of available address space announced: 6.6 Percentage of allocated address space announced: 6.6 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: 3291 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4735 Total APNIC prefixes after maximum aggregation: 2311 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4781 Unique aggregates announced from the APNIC address blocks: 2687 APNIC Region origin ASes present in the Internet Routing Table: 582 APNIC Prefixes per ASN: 8.21 APNIC Region origin ASes announcing only one prefix: 245 APNIC Region transit ASes present in the Internet Routing Table: 64 Average APNIC Region AS path length visible: 5.7 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 225 Number of APNIC addresses announced to Internet: 45858880 Equivalent to 2 /8s, 187 /16s and 192 /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: 13972 Total ARIN prefixes after maximum aggregation: 6304 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 13787 Unique aggregates announced from the ARIN address blocks: 7098 ARIN Region origin ASes present in the Internet Routing Table: 1227 ARIN Prefixes per ASN: 11.24 ARIN Region origin ASes announcing only one prefix: 424 ARIN Region transit ASes present in the Internet Routing Table: 162 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 189 Number of ARIN addresses announced to Internet: 132594241 Equivalent to 7 /8s, 231 /16s and 58 /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: 3626 Total RIPE prefixes after maximum aggregation: 2879 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3767 Unique aggregates announced from the RIPE address blocks: 3089 RIPE Region origin ASes present in the Internet Routing Table: 687 RIPE Prefixes per ASN: 5.48 RIPE Region origin ASes announcing only one prefix: 307 RIPE Region transit ASes present in the Internet Routing Table: 99 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 142 Number of RIPE addresses announced to Internet: 58012160 Equivalent to 3 /8s, 117 /16s and 50 /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: 1487 Total LACNIC prefixes after maximum aggregation: 665 LACNIC Deaggregation factor: 2.24 Prefixes being announced from the LACNIC address blocks: 1488 Unique aggregates announced from the LACNIC address blocks: 870 LACNIC Region origin ASes present in the Internet Routing Table: 150 LACNIC Prefixes per ASN: 9.92 LACNIC Region origin ASes announcing only one prefix: 48 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 59 Number of LACNIC addresses announced to Internet: 4062724 Equivalent to 0 /8s, 61 /16s and 254 /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: 1018 Total AfriNIC prefixes after maximum aggregation: 203 AfriNIC Deaggregation factor: 5.01 Prefixes being announced from the AfriNIC address blocks: 1017 Unique aggregates announced from the AfriNIC address blocks: 288 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 20.34 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.4 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: 2651648 Equivalent to 0 /8s, 40 /16s and 118 /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 595 2157 463 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 1237 188 74 134 KREONET-AS-KR KISTI, KR 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 119 18 12 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2604 3583 352 GOOGLE-CLOUD-PLATFORM, US 16509 1919 1631 769 AMAZON-02, US 15169 796 2254 63 GOOGLE, US 14618 736 3994 548 AMAZON-AES, US 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 2152 154 507 93 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 786 186 1775 183 JANET Jisc Services Limited, GB 8895 176 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 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/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 180 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 114 25 50 Red Universitaria Nacional, CL 27947 113 0 86 Telconet S.A, EC 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 1251 53 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 45 16 1 Red de Interconexion Universitaria, AR 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/CEDIA/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 253 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 44 28 3 RENU, UG 3208 32 2 1 ARN, DZ 327700 32 16 1 MoRENet, MZ 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/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2604 3583 352 GOOGLE-CLOUD-PLATFORM, US 16509 1919 1631 769 AMAZON-02, US 15169 796 2254 63 GOOGLE, US 14618 736 3994 548 AMAZON-AES, US 2907 595 2157 463 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 253 82 3 KENET-AS, KE 376 200 178 149 RISQ-AS, CA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 1919 1150 AMAZON-02, US 15169 796 733 GOOGLE, US 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 375 303 TENET-1, ZA 36914 253 250 KENET-AS, KE 5786 199 198 UPRENET, PR 14618 736 188 AMAZON-AES, US 58647 177 175 KAGAWAU-AS Kagawa University, JP 8895 176 172 ISU Internet Services Unit ISU, SA 1916 180 136 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 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/CEDIA/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: 27750 Cooperacion Latino Americana de Redes Av 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 216.169.147.0/24 Origin: 14618 AMAZON-AES, US 216.169.147.0/24 Transit: 16509 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/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 /11:4 /12:20 /13:34 /14:81 /15:160 /16:2088 /17:490 /18:475 /19:724 /20:2785 /21:1012 /22:1617 /23:1696 /24:13241 /25:88 /26:59 /27:94 /28:27 /29:75 /30:35 /31:30 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 280 1919 AMAZON-02, US 15169 271 796 GOOGLE, US 14618 246 736 AMAZON-AES, US 36914 240 253 KENET-AS, KE 396982 172 2604 GOOGLE-CLOUD-PLATFORM, US 8895 171 176 ISU Internet Services Unit ISU, SA 27947 91 113 Telconet S.A, EC 32440 79 94 LONI, US 23024 52 113 OCDE, US 46115 32 35 LUTHER, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:64 5:17 8:28 12:1 13:43 14:89 15:62 16:29 18:46 23:115 24:3 31:10 34:8 35:48 37:1 38:9 40:1 41:139 42:10 44:5 45:45 46:10 47:1 49:7 50:1 52:545 54:228 58:1 59:20 60:4 61:3 62:12 63:36 64:165 65:13 66:63 67:60 68:10 69:36 70:41 71:3 72:15 74:145 76:45 77:11 78:3 79:10 80:17 81:28 82:6 83:6 84:9 85:47 86:5 87:2 89:17 91:55 92:3 93:4 94:4 95:2 96:7 97:1 98:11 99:46 101:7 102:13 103:339 104:201 107:33 108:98 109:13 110:2 111:16 114:31 115:1 116:8 117:61 118:32 119:21 121:28 122:8 123:8 124:39 125:4 128:86 129:44 130:142 131:62 132:64 133:149 134:99 135:4 136:282 137:94 138:9 139:18 140:43 141:4 142:248 143:28 144:39 145:2 146:145 147:67 148:201 149:16 150:130 151:10 152:80 153:14 154:29 155:65 156:70 157:34 158:41 159:147 160:27 161:30 162:58 163:80 164:20 165:54 166:1 167:18 168:159 169:13 170:101 171:1 172:113 173:111 174:2 175:31 176:11 177:8 178:1 179:8 180:17 182:1 184:3 185:89 186:3 187:19 188:19 189:3 190:2 191:36 192:1466 193:354 194:130 195:88 196:162 197:156 198:496 199:301 200:207 201:32 202:632 203:429 204:362 205:151 206:199 207:183 208:117 209:156 210:186 211:18 212:171 213:15 216:163 217:12 218:22 219:6 220:17 222:5 223:4 End of report