IPv4 R&E Routing Table Report 20:30 GMT Thu 06 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: 156453 Prefixes after maximum aggregation (per Origin AS): 63352 Deaggregation factor: 2.47 Unique aggregates announced (without unneeded subnets): 90017 Number of IPv4 prefixes with a valid ROA: 84292 Number of IPv4 prefixes with an invalid ROA: 59 Number of IPv4 prefixes with no ROA: 72102 Total ASes present in the Internet Routing Table: 14568 Prefixes per ASN: 10.74 Origin-only ASes present in the Internet Routing Table: 12328 Origin ASes announcing only one prefix: 5903 Transit ASes present in the Internet Routing Table: 2240 Transit-only ASes present in the Internet Routing Table: 497 Paths with bogon ASNs present in the IPv4 Routing Table: 4 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 41 Max AS path prepend of ASN ( 37447) 36 Prefixes from unregistered ASNs in the Routing Table: 52 Number of instances of unregistered ASNs: 57 Number of 32-bit ASNs allocated by the RIRs: 46200 Number of 32-bit ASNs visible in the Routing Table: 7206 Prefixes from 32-bit ASNs in the Routing Table: 29531 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: 506272768 Equivalent to 30 /8s, 45 /16s and 28 /24s Percentage of available address space announced: 13.7 Percentage of allocated address space announced: 13.7 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: 37920 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 76584 Total APNIC prefixes after maximum aggregation: 25285 APNIC Deaggregation factor: 3.03 Prefixes being announced from the APNIC address blocks: 74803 Unique aggregates announced from the APNIC address blocks: 36442 APNIC Region origin ASes present in the Internet Routing Table: 4919 APNIC Prefixes per ASN: 15.21 APNIC Region origin ASes announcing only one prefix: 1810 APNIC Region transit ASes present in the Internet Routing Table: 727 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3123 Number of APNIC addresses announced to Internet: 191304448 Equivalent to 11 /8s, 103 /16s and 19 /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: 26811 Total ARIN prefixes after maximum aggregation: 14580 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26347 Unique aggregates announced from the ARIN address blocks: 20570 ARIN Region origin ASes present in the Internet Routing Table: 2110 ARIN Prefixes per ASN: 12.49 ARIN Region origin ASes announcing only one prefix: 994 ARIN Region transit ASes present in the Internet Routing Table: 228 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: 465 Number of ARIN addresses announced to Internet: 168063232 Equivalent to 10 /8s, 4 /16s and 113 /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: 39331 Total RIPE prefixes after maximum aggregation: 18553 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 40081 Unique aggregates announced from the RIPE address blocks: 25060 RIPE Region origin ASes present in the Internet Routing Table: 4606 RIPE Prefixes per ASN: 8.70 RIPE Region origin ASes announcing only one prefix: 2123 RIPE Region transit ASes present in the Internet Routing Table: 669 Average RIPE Region AS path length visible: 6.3 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1631 Number of RIPE addresses announced to Internet: 121507840 Equivalent to 7 /8s, 62 /16s and 16 /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: 12504 Total LACNIC prefixes after maximum aggregation: 4446 LACNIC Deaggregation factor: 2.81 Prefixes being announced from the LACNIC address blocks: 12175 Unique aggregates announced from the LACNIC address blocks: 5904 LACNIC Region origin ASes present in the Internet Routing Table: 2303 LACNIC Prefixes per ASN: 5.29 LACNIC Region origin ASes announcing only one prefix: 936 LACNIC Region transit ASes present in the Internet Routing Table: 489 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1922 Number of LACNIC addresses announced to Internet: 20322048 Equivalent to 1 /8s, 54 /16s and 23 /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: 1171 Total AfriNIC prefixes after maximum aggregation: 447 AfriNIC Deaggregation factor: 2.62 Prefixes being announced from the AfriNIC address blocks: 3007 Unique aggregates announced from the AfriNIC address blocks: 2009 AfriNIC Region origin ASes present in the Internet Routing Table: 114 AfriNIC Prefixes per ASN: 26.38 AfriNIC Region origin ASes announcing only one prefix: 40 AfriNIC Region transit ASes present in the Internet Routing Table: 32 Average AfriNIC Region AS path length visible: 6.9 Max AfriNIC Region AS path length visible: 40 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 65 Number of AfriNIC addresses announced to Internet: 5047808 Equivalent to 0 /8s, 77 /16s and 6 /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 10147 8753 87 CHINAMOBILE-CN China Mobile Communication 9498 4155 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2841 851 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2005 6034 929 KIXS-AS-KR Korea Telecom, KR 45609 1807 815 333 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 7552 1768 694 529 VIETEL-AS-AP Viettel Group, VN 56046 1579 804 173 CMNET-JIANGSU-AP China Mobile communicati 56041 1547 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1503 192 53 CMNET-HUNAN-AP China Mobile communication 9919 964 170 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 2395 334 689 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 3095 505 CHARTER-20115, US 16509 2180 3548 1245 AMAZON-02, US 11492 1871 130 1022 CABLEONE, US 714 1202 4391 8 APPLE-ENGINEERING, US 8075 717 16017 606 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 383 1416 210 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 2216 1998 783 ROSTELECOM-AS, RU 49505 854 92 355 SELECTEL, RU 25019 765 644 292 SAUDINETSTC-AS, SA 50010 665 76 11 NAWRAS-AS Sultanate of Oman, OM 9123 580 36 258 TIMEWEB-AS, RU 9155 431 37 9 QNET Kuwait, KW 42772 374 63 104 A1-BY-AS, BY 20940 348 3388 44 AKAMAI-ASN1, NL 50340 347 34 227 SELECTEL-MSK, RU 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 1719 620 238 UNINET, MX 7738 605 1807 67 V tal, BR 8167 318 1083 46 V tal, BR 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 130 10 26 CPS, AR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11340 108 9 52 Red Universitaria Nacional, CL 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 2018 380 319 71 TENET-1, ZA 36873 184 82 33 VNL1-AS, NG 15399 125 13 60 WANANCHI-, KE 23889 52 30 30 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 6879 24 2 9 ENSTINET-, EG 37531 21 2 15 AIRTEL-NIGER, NE 37326 18 1 3 GICO, SO 37294 16 35 5 TNM, MW 327885 14 1 10 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 10147 8753 87 CHINAMOBILE-CN China Mobile Communication 39891 4179 255 52 ALJAWWALSTC-AS, SA 9498 4155 497 265 BBIL-AP BHARTI Airtel Ltd., IN 24560 2841 851 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2395 334 689 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2232 3095 505 CHARTER-20115, US 12389 2216 1998 783 ROSTELECOM-AS, RU 16509 2180 3548 1245 AMAZON-02, US 4766 2005 6034 929 KIXS-AS-KR Korea Telecom, KR 11492 1871 130 1022 CABLEONE, US 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 4155 3890 BBIL-AP BHARTI Airtel Ltd., IN 24560 2841 2308 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 20115 2232 1727 CHARTER-20115, US 30036 2395 1706 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 1719 1481 UNINET, MX 45609 1807 1474 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 56041 1547 1473 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1503 1450 CMNET-HUNAN-AP China Mobile communications corp 12389 2216 1433 ROSTELECOM-AS, RU 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 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 103.12.68.0/22 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/22 Transit: 51847 NEAROUTE, HK 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 /13:79 /14:161 /15:398 /16:2480 /17:1356 /18:2790 /19:4374 /20:7622 /21:9181 /22:16837 /23:16207 /24:94890 /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 2081 2395 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1319 2216 ROSTELECOM-AS, RU 11492 1313 1871 CABLEONE, US 8151 955 1719 UNINET, MX 49505 590 854 SELECTEL, RU 50010 552 665 NAWRAS-AS Sultanate of Oman, OM 20115 548 2232 CHARTER-20115, US 16509 475 2180 AMAZON-02, US 9123 466 580 TIMEWEB-AS, RU Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:159 2:310 3:96 5:1052 6:4 8:56 12:82 13:85 14:378 15:58 16:63 17:310 18:77 20:23 23:723 24:501 25:2 27:594 31:533 32:2 34:3 35:38 36:1356 37:576 38:517 39:691 40:1 41:42 42:152 43:642 44:19 45:2512 46:745 47:63 49:202 50:319 51:138 52:258 54:41 57:29 58:288 59:463 60:95 61:812 62:539 63:131 64:384 65:290 66:299 67:297 68:68 69:250 70:31 71:76 72:243 74:198 75:66 76:55 77:482 78:442 79:234 80:248 81:357 82:361 83:170 84:182 85:337 86:136 87:298 88:98 89:495 90:130 91:1386 92:424 93:937 94:683 95:1460 96:267 97:145 98:71 99:47 101:454 102:96 103:7926 104:392 105:158 106:290 107:113 108:136 109:423 110:234 111:2082 112:908 113:305 114:823 115:282 116:374 117:1370 118:324 119:272 120:1232 121:405 122:1778 123:420 124:348 125:1589 126:1 128:395 129:56 130:131 131:198 132:46 133:304 134:141 135:23 136:80 137:160 138:327 139:231 140:313 141:204 142:95 143:160 144:100 145:100 146:377 147:251 148:360 149:232 150:266 151:494 152:491 153:36 154:925 155:169 156:468 157:276 158:129 159:389 160:646 161:148 162:259 163:270 164:144 165:227 166:60 167:201 168:500 169:80 170:567 171:154 172:217 173:974 174:120 175:545 176:695 177:551 178:691 179:232 180:474 181:172 182:1567 183:1062 184:134 185:2292 186:220 187:447 188:621 189:256 190:513 191:109 192:1745 193:1107 194:912 195:766 196:265 197:116 198:744 199:526 200:773 201:531 202:2382 203:2173 204:270 205:272 206:339 207:315 208:220 209:307 210:1511 211:1161 212:783 213:543 214:9 216:364 217:538 218:797 219:51 220:590 221:368 222:131 223:1044 End of report