IPv4 R&E Routing Table Report 22:10 GMT Sun 25 Jun, 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: 25060 Prefixes after maximum aggregation (per Origin AS): 12297 Deaggregation factor: 2.04 Unique aggregates announced (without unneeded subnets): 13920 Number of IPv4 prefixes with a valid ROA: 11096 Number of IPv4 prefixes with an invalid ROA: 194 Number of IPv4 prefixes with no ROA: 13770 Total ASes present in the Internet Routing Table: 2700 Prefixes per ASN: 9.28 Origin-only ASes present in the Internet Routing Table: 2318 Origin ASes announcing only one prefix: 1030 Transit ASes present in the Internet Routing Table: 382 Transit-only ASes present in the Internet Routing Table: 72 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: 8 Number of instances of unregistered ASNs: 8 Number of 32-bit ASNs allocated by the RIRs: 42159 Number of 32-bit ASNs visible in the Routing Table: 614 Prefixes from 32-bit ASNs in the Routing Table: 4595 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: 7 Number of addresses announced to Internet: 243032360 Equivalent to 14 /8s, 124 /16s and 97 /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: 3410 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4595 Total APNIC prefixes after maximum aggregation: 2239 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4639 Unique aggregates announced from the APNIC address blocks: 2584 APNIC Region origin ASes present in the Internet Routing Table: 531 APNIC Prefixes per ASN: 8.74 APNIC Region origin ASes announcing only one prefix: 220 APNIC Region transit ASes present in the Internet Routing Table: 57 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 198 Number of APNIC addresses announced to Internet: 45780032 Equivalent to 2 /8s, 186 /16s and 140 /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: 14255 Total ARIN prefixes after maximum aggregation: 6380 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 14048 Unique aggregates announced from the ARIN address blocks: 7164 ARIN Region origin ASes present in the Internet Routing Table: 1221 ARIN Prefixes per ASN: 11.51 ARIN Region origin ASes announcing only one prefix: 425 ARIN Region transit ASes present in the Internet Routing Table: 164 Average ARIN Region AS path length visible: 4.4 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: 132522401 Equivalent to 7 /8s, 230 /16s and 33 /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: 3646 Total RIPE prefixes after maximum aggregation: 2879 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3805 Unique aggregates announced from the RIPE address blocks: 3111 RIPE Region origin ASes present in the Internet Routing Table: 686 RIPE Prefixes per ASN: 5.55 RIPE Region origin ASes announcing only one prefix: 305 RIPE Region transit ASes present in the Internet Routing Table: 107 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 144 Number of RIPE addresses announced to Internet: 58010112 Equivalent to 3 /8s, 117 /16s and 42 /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: 1461 Total LACNIC prefixes after maximum aggregation: 617 LACNIC Deaggregation factor: 2.37 Prefixes being announced from the LACNIC address blocks: 1467 Unique aggregates announced from the LACNIC address blocks: 828 LACNIC Region origin ASes present in the Internet Routing Table: 133 LACNIC Prefixes per ASN: 11.03 LACNIC Region origin ASes announcing only one prefix: 53 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 55 Number of LACNIC addresses announced to Internet: 4043847 Equivalent to 0 /8s, 61 /16s and 180 /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: 1095 Total AfriNIC prefixes after maximum aggregation: 174 AfriNIC Deaggregation factor: 6.29 Prefixes being announced from the AfriNIC address blocks: 1094 Unique aggregates announced from the AfriNIC address blocks: 226 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 21.04 AfriNIC Region origin ASes announcing only one prefix: 27 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2670080 Equivalent to 0 /8s, 40 /16s and 190 /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 607 2154 466 SINET-AS Research Organization of Infor 7497 433 180 23 CSTNET-AS-AP Computer Network Informati 1237 193 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 176 329 120 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2666 3594 378 GOOGLE-CLOUD-PLATFORM, US 16509 2116 1684 830 AMAZON-02, US 15169 823 2253 62 GOOGLE, US 14618 789 4013 586 AMAZON-AES, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 36492 157 11 35 GOOGLEWIFI, US 2152 143 507 93 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 128 521 31 NCREN, 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 680 284 1919 250 DFN Verein zur Foerderung eines Deutsch 786 186 1767 183 JANET Jisc Services Limited, GB 8895 177 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/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 259 192 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 126 0 96 Telconet S.A, EC 11340 114 25 51 Red Universitaria Nacional, CL 1251 60 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 3596 35 4 3 Universidad Autonoma Metropolitana, MX 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 382 319 72 TENET-1, ZA 36914 256 82 3 KENET-AS, KE 327687 163 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 41 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/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2666 3594 378 GOOGLE-CLOUD-PLATFORM, US 16509 2116 1684 830 AMAZON-02, US 15169 823 2253 62 GOOGLE, US 14618 789 4013 586 AMAZON-AES, US 2907 607 2154 466 SINET-AS Research Organization of Infor 7497 433 180 23 CSTNET-AS-AP Computer Network Informati 2018 382 319 72 TENET-1, ZA 680 284 1919 250 DFN Verein zur Foerderung eines Deutsch 1916 259 192 43 Rede Nacional de Ensino e Pesquisa, BR 36914 256 82 3 KENET-AS, KE 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 2116 1286 AMAZON-02, US 15169 823 761 GOOGLE, US 7497 433 410 CSTNET-AS-AP Computer Network Information Cente 2018 382 310 TENET-1, ZA 36914 256 253 KENET-AS, KE 1916 259 216 Rede Nacional de Ensino e Pesquisa, BR 14618 789 203 AMAZON-AES, US 5786 198 197 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 177 172 ISU Internet Services Unit ISU, SA 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 29867 UNALLOCATED 64.202.80.0/20 22742 CT-EDU-NET, US 138933 UNALLOCATED 103.137.86.0/24 24490 TEIN2-SG-AP Trans-Eurasia In 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 29867 UNALLOCATED 192.160.243.0/24 22742 CT-EDU-NET, US 29867 UNALLOCATED 192.160.244.0/24 22742 CT-EDU-NET, 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 64.202.80.0/20 Origin: 29867 UNASSIGNED 64.202.80.0/20 Transit: 22742 CT-EDU-NET, US 76.76.19.0/24 Origin: 16509 AMAZON-02, US 76.76.19.0/24 Transit: 27750 Cooperacion Latino Americana de Redes Av 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 27750 Cooperacion Latino Americana de Redes Av 103.137.86.0/24 Origin: 138933 UNASSIGNED 103.137.86.0/24 Transit: 24490 TEIN2-SG-AP Trans-Eurasia Information Ne 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/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 /15:161 /16:2080 /17:498 /18:477 /19:719 /20:2763 /21:1011 /22:1614 /23:1708 /24:13429 /25:95 /26:75 /27:91 /28:22 /29:87 /30:41 /31:35 /32:12 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 288 2116 AMAZON-02, US 15169 273 823 GOOGLE, US 14618 256 789 AMAZON-AES, US 36914 244 256 KENET-AS, KE 396982 194 2666 GOOGLE-CLOUD-PLATFORM, US 8895 172 177 ISU Internet Services Unit ISU, SA 27947 99 126 Telconet S.A, EC 32440 79 108 LONI, US 23024 52 113 OCDE, US 1916 39 259 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:75 5:18 8:28 12:1 13:45 14:89 15:69 16:108 18:55 23:113 24:3 31:10 34:18 35:47 38:9 40:1 41:146 42:10 44:8 45:51 46:11 47:1 49:6 50:2 52:558 54:228 59:19 60:4 61:3 62:12 63:36 64:168 65:13 66:66 67:60 68:10 69:35 70:43 71:3 72:12 74:143 76:46 77:11 78:3 79:10 80:13 81:26 82:7 83:6 84:10 85:45 86:10 87:2 88:1 89:18 91:55 92:4 93:4 94:4 95:2 96:2 97:1 98:11 99:47 101:3 102:31 103:263 104:210 107:33 108:101 109:12 111:5 114:31 115:1 116:8 117:61 118:32 119:18 121:28 122:8 123:8 124:38 125:4 128:87 129:45 130:141 131:57 132:64 133:155 134:104 135:4 136:295 137:147 138:12 139:18 140:36 141:4 142:273 143:21 144:39 145:2 146:143 147:65 148:201 149:16 150:40 151:14 152:146 153:14 154:31 155:75 156:69 157:28 158:41 159:148 160:27 161:33 162:86 163:81 164:20 165:55 166:1 167:23 168:139 169:12 170:64 171:1 172:114 173:112 174:2 175:19 176:11 177:5 178:1 179:8 180:15 182:1 184:3 185:100 186:3 187:18 188:19 189:3 190:5 191:36 192:1466 193:308 194:128 195:87 196:203 197:161 198:486 199:305 200:254 201:36 202:628 203:430 204:367 205:148 206:200 207:189 208:128 209:168 210:184 211:3 212:171 213:15 216:168 217:11 218:22 219:6 220:16 222:3 223:14 End of report