IPv4 R&E Routing Table Report 20:30 GMT Wed 04 Jun, 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: 160764 Prefixes after maximum aggregation (per Origin AS): 64046 Deaggregation factor: 2.51 Unique aggregates announced (without unneeded subnets): 90741 Number of IPv4 prefixes with a valid ROA: 88631 Number of IPv4 prefixes with an invalid ROA: 64 Number of IPv4 prefixes with no ROA: 72069 Total ASes present in the Internet Routing Table: 14757 Prefixes per ASN: 10.89 Origin-only ASes present in the Internet Routing Table: 12474 Origin ASes announcing only one prefix: 6065 Transit ASes present in the Internet Routing Table: 2283 Transit-only ASes present in the Internet Routing Table: 501 Paths with bogon ASNs present in the IPv4 Routing Table: 1 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: 69 Number of instances of unregistered ASNs: 69 Number of 32-bit ASNs allocated by the RIRs: 46565 Number of 32-bit ASNs visible in the Routing Table: 7275 Prefixes from 32-bit ASNs in the Routing Table: 30251 Number of bogon 32-bit ASNs visible in the Routing Table: 2 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 30 Number of addresses announced to Internet: 505922560 Equivalent to 30 /8s, 39 /16s and 196 /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: 39449 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79079 Total APNIC prefixes after maximum aggregation: 25063 APNIC Deaggregation factor: 3.16 Prefixes being announced from the APNIC address blocks: 77304 Unique aggregates announced from the APNIC address blocks: 36584 APNIC Region origin ASes present in the Internet Routing Table: 4983 APNIC Prefixes per ASN: 15.51 APNIC Region origin ASes announcing only one prefix: 1846 APNIC Region transit ASes present in the Internet Routing Table: 748 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3185 Number of APNIC addresses announced to Internet: 188375552 Equivalent to 11 /8s, 58 /16s and 98 /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: 27409 Total ARIN prefixes after maximum aggregation: 15009 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 27043 Unique aggregates announced from the ARIN address blocks: 20912 ARIN Region origin ASes present in the Internet Routing Table: 2236 ARIN Prefixes per ASN: 12.09 ARIN Region origin ASes announcing only one prefix: 1048 ARIN Region transit ASes present in the Internet Routing Table: 234 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 503 Number of ARIN addresses announced to Internet: 168127488 Equivalent to 10 /8s, 5 /16s and 108 /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: 40124 Total RIPE prefixes after maximum aggregation: 19025 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 40899 Unique aggregates announced from the RIPE address blocks: 25748 RIPE Region origin ASes present in the Internet Routing Table: 4663 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 2175 RIPE Region transit ASes present in the Internet Routing Table: 672 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: 1654 Number of RIPE addresses announced to Internet: 125308672 Equivalent to 7 /8s, 120 /16s and 15 /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: 12487 Total LACNIC prefixes after maximum aggregation: 4518 LACNIC Deaggregation factor: 2.76 Prefixes being announced from the LACNIC address blocks: 11983 Unique aggregates announced from the LACNIC address blocks: 5786 LACNIC Region origin ASes present in the Internet Routing Table: 2254 LACNIC Prefixes per ASN: 5.32 LACNIC Region origin ASes announcing only one prefix: 956 LACNIC Region transit ASes present in the Internet Routing Table: 490 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1883 Number of LACNIC addresses announced to Internet: 18211072 Equivalent to 1 /8s, 21 /16s and 225 /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: 1596 Total AfriNIC prefixes after maximum aggregation: 382 AfriNIC Deaggregation factor: 4.18 Prefixes being announced from the AfriNIC address blocks: 3505 Unique aggregates announced from the AfriNIC address blocks: 1686 AfriNIC Region origin ASes present in the Internet Routing Table: 101 AfriNIC Prefixes per ASN: 34.70 AfriNIC Region origin ASes announcing only one prefix: 40 AfriNIC Region transit ASes present in the Internet Routing Table: 31 Average AfriNIC Region AS path length visible: 7.4 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 50 Number of AfriNIC addresses announced to Internet: 5881600 Equivalent to 0 /8s, 89 /16s and 191 /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 10884 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4242 500 296 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 56046 2002 812 180 CMNET-JIANGSU-AP China Mobile communicati 4766 1982 6032 921 KIXS-AS-KR Korea Telecom, KR 45609 1853 826 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1638 728 86 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1484 192 50 CMNET-HUNAN-AP China Mobile communication 9919 971 170 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 2421 335 654 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2267 3695 1299 AMAZON-02, US 20115 2245 3096 513 CHARTER-20115, US 11492 1942 135 1048 CABLEONE, US 714 1242 4391 8 APPLE-ENGINEERING, US 8075 761 16021 643 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 638 1880 300 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 402 45 268 CENIC-2152, US 33363 372 1419 221 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 4180 255 53 ALJAWWALSTC-AS, SA 12389 2347 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 888 623 323 SAUDINETSTC-AS, SA 49505 860 92 356 SELECTEL, RU 9123 648 41 291 TIMEWEB-AS, RU 50010 618 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 487 191 179 KAZTELECOM-AS, KZ 9155 427 37 8 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 374 63 104 A1-BY-AS, BY 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 2087 692 280 UNINET, MX 7738 510 1527 64 V tal, BR 8167 342 1089 44 V tal, BR 1916 241 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 219 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 126 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR 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 554 82 3 KENET-AS, KE 2018 374 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 55 37 31 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37473 46 4 2 TELESOM, SO 10798 38 2 30 SBICSA, ZA 37215 36 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 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 10884 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4242 500 296 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2421 335 654 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2347 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2267 3695 1299 AMAZON-02, US 20115 2245 3096 513 CHARTER-20115, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2087 692 280 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 4180 4127 ALJAWWALSTC-AS, SA 9498 4242 3946 BBIL-AP BHARTI Airtel Ltd., IN 24560 2878 2350 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 56046 2002 1822 CMNET-JIANGSU-AP China Mobile communications co 8151 2087 1807 UNINET, MX 30036 2421 1767 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2245 1732 CHARTER-20115, US 7552 2151 1694 VIETEL-AS-AP Viettel Group, VN 12389 2347 1565 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 56041 1638 1552 CMNET-ZHEJIANG-AP China Mobile communications c 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 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 268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED 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 46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, 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 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: 17476 CHL-AS-AP CloudRadium HK Limited, HK 103.12.68.0/24 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/24 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, 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 /12:47 /13:82 /14:162 /15:395 /16:2479 /17:1313 /18:2763 /19:4449 /20:7673 /21:9676 /22:17460 /23:16679 /24:97556 /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 4180 ALJAWWALSTC-AS, SA 30036 2104 2421 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1439 2347 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1334 1942 CABLEONE, US 8151 1141 2087 UNINET, MX 49505 597 860 SELECTEL, RU 20115 552 2245 CHARTER-20115, US 36914 530 554 KENET-AS, KE 9123 526 648 TIMEWEB-AS, RU 50010 516 618 NAWRAS-AS Sultanate of Oman, OM Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:160 2:323 3:105 5:1112 8:82 12:73 13:90 14:399 15:59 16:63 17:325 18:74 20:28 23:748 24:597 25:2 27:603 31:554 32:2 34:3 35:53 36:1952 37:642 38:553 39:696 40:1 41:249 42:115 43:672 44:23 45:2356 46:786 47:64 49:209 50:327 51:138 52:258 54:62 57:28 58:263 59:460 60:95 61:787 62:563 63:137 64:365 65:165 66:326 67:300 68:78 69:299 70:50 71:82 72:241 74:231 75:68 76:62 77:496 78:454 79:247 80:227 81:345 82:377 83:190 84:195 85:401 86:134 87:319 88:106 89:483 90:135 91:1386 92:458 93:960 94:783 95:1477 96:270 97:149 98:73 99:47 101:488 102:111 103:7901 104:389 105:9 106:293 107:109 108:175 109:452 110:224 111:2113 112:994 113:300 114:840 115:374 116:431 117:1378 118:351 119:241 120:1340 121:423 122:1727 123:394 124:329 125:1595 126:6 128:381 129:61 130:127 131:211 132:52 133:302 134:175 135:23 136:78 137:167 138:319 139:127 140:325 141:151 142:83 143:167 144:132 145:148 146:335 147:221 148:350 149:193 150:220 151:533 152:455 153:38 154:940 155:202 156:485 157:260 158:131 159:382 160:626 161:144 162:277 163:329 164:150 165:232 166:42 167:170 168:589 169:74 170:468 171:194 172:239 173:996 174:125 175:561 176:732 177:480 178:697 179:178 180:452 181:158 182:1639 183:1135 184:140 185:2295 186:213 187:542 188:600 189:311 190:478 191:100 192:1879 193:1114 194:898 195:788 196:314 197:375 198:798 199:536 200:799 201:539 202:2440 203:2181 204:295 205:269 206:320 207:325 208:258 209:326 210:1484 211:1151 212:762 213:531 216:395 217:552 218:815 219:62 220:564 221:421 222:132 223:1236 End of report