IPv4 R&E Routing Table Report 20:30 GMT Tue 18 Mar, 2025 IPv4 BGP Table (R&E) as seen at PREGINET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PREGINET/ Analysis Summary ---------------- BGP routing table entries examined: 156297 Prefixes after maximum aggregation (per Origin AS): 63550 Deaggregation factor: 2.46 Unique aggregates announced (without unneeded subnets): 90234 Number of IPv4 prefixes with a valid ROA: 85531 Number of IPv4 prefixes with an invalid ROA: 57 Number of IPv4 prefixes with no ROA: 70709 Total ASes present in the Internet Routing Table: 14644 Prefixes per ASN: 10.67 Origin-only ASes present in the Internet Routing Table: 12376 Origin ASes announcing only one prefix: 5966 Transit ASes present in the Internet Routing Table: 2268 Transit-only ASes present in the Internet Routing Table: 505 Paths with bogon ASNs present in the IPv4 Routing Table: 6 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 45 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 55 Number of instances of unregistered ASNs: 60 Number of 32-bit ASNs allocated by the RIRs: 46144 Number of 32-bit ASNs visible in the Routing Table: 7223 Prefixes from 32-bit ASNs in the Routing Table: 29256 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 40 Number of addresses announced to Internet: 495816448 Equivalent to 29 /8s, 141 /16s and 143 /24s Percentage of available address space announced: 13.4 Percentage of allocated address space announced: 13.4 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: 38579 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 76857 Total APNIC prefixes after maximum aggregation: 25484 APNIC Deaggregation factor: 3.02 Prefixes being announced from the APNIC address blocks: 75163 Unique aggregates announced from the APNIC address blocks: 36759 APNIC Region origin ASes present in the Internet Routing Table: 5036 APNIC Prefixes per ASN: 14.93 APNIC Region origin ASes announcing only one prefix: 1877 APNIC Region transit ASes present in the Internet Routing Table: 738 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3230 Number of APNIC addresses announced to Internet: 189115904 Equivalent to 11 /8s, 69 /16s and 174 /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, 131072-155961 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: 26878 Total ARIN prefixes after maximum aggregation: 14644 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26039 Unique aggregates announced from the ARIN address blocks: 20547 ARIN Region origin ASes present in the Internet Routing Table: 2120 ARIN Prefixes per ASN: 12.28 ARIN Region origin ASes announcing only one prefix: 1002 ARIN Region transit ASes present in the Internet Routing Table: 229 Average ARIN Region AS path length visible: 5.1 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 472 Number of ARIN addresses announced to Internet: 164024576 Equivalent to 9 /8s, 198 /16s and 209 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 39307 Total RIPE prefixes after maximum aggregation: 18799 RIPE Deaggregation factor: 2.09 Prefixes being announced from the RIPE address blocks: 40069 Unique aggregates announced from the RIPE address blocks: 25368 RIPE Region origin ASes present in the Internet Routing Table: 4690 RIPE Prefixes per ASN: 8.54 RIPE Region origin ASes announcing only one prefix: 2167 RIPE Region transit ASes present in the Internet Routing Table: 680 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1648 Number of RIPE addresses announced to Internet: 124276992 Equivalent to 7 /8s, 104 /16s and 81 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 11268 Total LACNIC prefixes after maximum aggregation: 4163 LACNIC Deaggregation factor: 2.71 Prefixes being announced from the LACNIC address blocks: 11285 Unique aggregates announced from the LACNIC address blocks: 5634 LACNIC Region origin ASes present in the Internet Routing Table: 2147 LACNIC Prefixes per ASN: 5.26 LACNIC Region origin ASes announcing only one prefix: 873 LACNIC Region transit ASes present in the Internet Routing Table: 485 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 45 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1802 Number of LACNIC addresses announced to Internet: 12806144 Equivalent to 0 /8s, 195 /16s and 104 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 1932 Total AfriNIC prefixes after maximum aggregation: 417 AfriNIC Deaggregation factor: 4.63 Prefixes being announced from the AfriNIC address blocks: 3701 Unique aggregates announced from the AfriNIC address blocks: 1894 AfriNIC Region origin ASes present in the Internet Routing Table: 126 AfriNIC Prefixes per ASN: 29.37 AfriNIC Region origin ASes announcing only one prefix: 47 AfriNIC Region transit ASes present in the Internet Routing Table: 38 Average AfriNIC Region AS path length visible: 7.0 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 71 Number of AfriNIC addresses announced to Internet: 5564672 Equivalent to 0 /8s, 84 /16s and 233 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 9808 10144 8753 87 CHINAMOBILE-CN China Mobile Communication 9498 4144 496 257 BBIL-AP BHARTI Airtel Ltd., IN 24560 2837 847 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2004 6034 928 KIXS-AS-KR Korea Telecom, KR 45609 1833 820 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 7552 1758 692 534 VIETEL-AS-AP Viettel Group, VN 56046 1581 804 173 CMNET-JIANGSU-AP China Mobile communicati 56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1494 192 53 CMNET-HUNAN-AP China Mobile communication 9919 965 170 64 NCIC-TW New Century InfoComm Tech Co., Lt Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 30036 2391 332 703 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2229 3095 504 CHARTER-20115, US 16509 2192 3550 1251 AMAZON-02, US 11492 1872 130 1023 CABLEONE, US 714 1207 4391 8 APPLE-ENGINEERING, US 8075 723 16017 611 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 640 1944 302 TWC-10796-MIDWEST, US 12083 437 191 84 WOW-INTERNET, US 2152 384 39 260 CENIC-2152, US 33363 384 1416 211 BHN-33363, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 4179 255 52 ALJAWWALSTC-AS, SA 12389 2238 1997 784 ROSTELECOM-AS, RU 49505 854 92 355 SELECTEL, RU 25019 762 644 290 SAUDINETSTC-AS, SA 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 588 37 259 TIMEWEB-AS, RU 9155 430 37 9 QNET Kuwait, KW 42772 375 63 104 A1-BY-AS, BY 50340 347 34 227 SELECTEL-MSK, RU 209242 344 31 309 CLOUDFLARESPECTRUM Cloudflare, Inc., US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1986 709 250 UNINET, MX 1916 235 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 218 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M 52251 139 6 9 NORTECH, AR 11014 129 10 26 CPS, AR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11340 108 9 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 52468 73 5 45 UFINET PANAMA S.A., PA Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 547 82 3 KENET-AS, KE 2018 374 318 69 TENET-1, ZA 15399 290 35 31 WANANCHI-, KE 36873 197 83 30 VNL1-AS, NG 23889 49 27 29 MauritiusTelecom, MU 8094 37 36 13 PUKNET, ZA 37215 35 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37531 22 2 16 AIRTEL-NIGER, NE 327885 21 4 2 Viettel-Tanzania, TZ Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10144 8753 87 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4144 496 257 BBIL-AP BHARTI Airtel Ltd., IN 24560 2837 847 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2391 332 703 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2238 1997 784 ROSTELECOM-AS, RU 20115 2229 3095 504 CHARTER-20115, US 16509 2192 3550 1251 AMAZON-02, US 4766 2004 6034 928 KIXS-AS-KR Korea Telecom, KR 8151 1986 709 250 UNINET, MX Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 39891 4179 4127 ALJAWWALSTC-AS, SA 9498 4144 3887 BBIL-AP BHARTI Airtel Ltd., IN 24560 2837 2301 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 1986 1736 UNINET, MX 20115 2229 1725 CHARTER-20115, US 30036 2391 1688 MEDIACOM-ENTERPRISE-BUSINESS, US 45609 1833 1509 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1547 1473 CMNET-ZHEJIANG-AP China Mobile communications c 12389 2238 1454 ROSTELECOM-AS, RU 56047 1494 1441 CMNET-HUNAN-AP China Mobile communications corp Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 393377 UNALLOCATED 12.195.116.0/24 40264 TWC-40264-WI-MN-UPPERMI 202528 UNALLOCATED 23.143.136.0/24 153371 BACKWAVESLIMITED-AS-AP 46123 UNALLOCATED 24.73.234.0/24 33363 BHN-33363, US 53771 UNALLOCATED 24.172.253.0/24 11426 TWC-11426-CAROLINAS, US 53657 UNALLOCATED 24.213.247.0/24 11351 TWC-11351-NORTHEAST, US 11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US 26345 UNALLOCATED 71.13.182.0/24 20115 CHARTER-20115, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.161.8.0/24 Origin: 142433 DATAWAVE-AS-AP DATAWAVE GLOBAL LLC, CN 23.161.8.0/24 Transit: 983 AKARI-NETWORKS, US 102.219.4.0/22 Origin: 328932 RESERVED, ZZ 102.219.4.0/22 Transit: 36873 VNL1-AS, NG 103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.6.224.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.6.224.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.8.106.0/24 Origin: 135391 AOFEI-HK AOFEI DATA INTERNATIONAL COMPAN 103.8.106.0/24 Transit: 55888 NINTATSU Nintatsu Global Telecommunicati Complete listing at https://bgp.nsrc.org/REN/PREGINET/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 /8:1 /9:2 /10:13 /11:13 /12:48 /13:80 /14:140 /15:377 /16:2369 /17:1319 /18:2077 /19:4402 /20:7528 /21:9256 /22:16881 /23:16244 /24:95546 /25:1 /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 39891 3321 4179 ALJAWWALSTC-AS, SA 30036 2076 2391 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1342 2238 ROSTELECOM-AS, RU 11492 1313 1872 CABLEONE, US 8151 1065 1986 UNINET, MX 49505 590 854 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 545 2229 CHARTER-20115, US 36914 523 547 KENET-AS, KE 16509 485 2192 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:173 2:311 3:97 5:1072 6:4 8:61 12:84 13:87 14:376 15:57 16:63 17:312 18:75 20:23 23:720 24:502 25:2 27:597 31:540 32:2 34:3 35:38 36:1347 37:578 38:528 39:693 40:1 41:266 42:141 43:650 44:23 45:2426 46:757 47:63 49:202 50:320 51:138 52:258 54:41 57:30 58:302 59:466 60:95 61:808 62:533 63:130 64:382 65:287 66:299 67:299 68:69 69:245 70:32 71:75 72:246 74:201 75:64 76:55 77:484 78:453 79:234 80:216 81:351 82:367 83:165 84:179 85:341 86:141 87:302 88:102 89:500 90:130 91:1377 92:430 93:937 94:676 95:1463 96:267 97:145 98:71 99:47 101:351 102:96 103:8146 104:379 105:170 106:292 107:115 108:138 109:426 110:234 111:2092 112:907 113:309 114:835 115:303 116:388 117:1365 118:393 119:273 120:1232 121:415 122:1710 123:426 124:340 125:1579 126:1 128:396 129:54 130:130 131:180 132:45 133:304 134:140 135:23 136:80 137:162 138:313 139:225 140:312 141:207 142:79 143:160 144:112 145:100 146:377 147:255 148:349 149:230 150:274 151:512 152:462 153:36 154:894 155:195 156:444 157:288 158:131 159:390 160:643 161:151 162:265 163:294 164:142 165:225 166:59 167:204 168:360 169:80 170:560 171:158 172:226 173:969 174:120 175:533 176:710 177:493 178:670 179:188 180:492 181:179 182:1557 183:1066 184:137 185:2307 186:212 187:454 188:621 189:290 190:525 191:90 192:1830 193:1124 194:918 195:770 196:292 197:524 198:745 199:538 200:775 201:542 202:2388 203:2153 204:273 205:273 206:313 207:314 208:207 209:320 210:1488 211:1148 212:785 213:540 214:10 216:372 217:542 218:796 219:55 220:590 221:357 222:135 223:1048 End of report