IPv4 R&E Routing Table Report 20:30 GMT Sat 07 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: 158673 Prefixes after maximum aggregation (per Origin AS): 62619 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 89201 Number of IPv4 prefixes with a valid ROA: 87968 Number of IPv4 prefixes with an invalid ROA: 79 Number of IPv4 prefixes with no ROA: 70626 Total ASes present in the Internet Routing Table: 14422 Prefixes per ASN: 11.00 Origin-only ASes present in the Internet Routing Table: 12176 Origin ASes announcing only one prefix: 5895 Transit ASes present in the Internet Routing Table: 2246 Transit-only ASes present in the Internet Routing Table: 507 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: 52 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 70 Number of instances of unregistered ASNs: 70 Number of 32-bit ASNs allocated by the RIRs: 46622 Number of 32-bit ASNs visible in the Routing Table: 7180 Prefixes from 32-bit ASNs in the Routing Table: 30058 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: 34 Number of addresses announced to Internet: 496416768 Equivalent to 29 /8s, 150 /16s and 184 /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: 39010 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 78085 Total APNIC prefixes after maximum aggregation: 24403 APNIC Deaggregation factor: 3.20 Prefixes being announced from the APNIC address blocks: 76336 Unique aggregates announced from the APNIC address blocks: 35752 APNIC Region origin ASes present in the Internet Routing Table: 4830 APNIC Prefixes per ASN: 15.80 APNIC Region origin ASes announcing only one prefix: 1776 APNIC Region transit ASes present in the Internet Routing Table: 739 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: 3120 Number of APNIC addresses announced to Internet: 183854080 Equivalent to 10 /8s, 245 /16s and 100 /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: 26432 Total ARIN prefixes after maximum aggregation: 14310 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26103 Unique aggregates announced from the ARIN address blocks: 20149 ARIN Region origin ASes present in the Internet Routing Table: 2071 ARIN Prefixes per ASN: 12.60 ARIN Region origin ASes announcing only one prefix: 985 ARIN Region transit ASes present in the Internet Routing Table: 218 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: 470 Number of ARIN addresses announced to Internet: 163176960 Equivalent to 9 /8s, 185 /16s and 226 /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: 39934 Total RIPE prefixes after maximum aggregation: 18955 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 40709 Unique aggregates announced from the RIPE address blocks: 25682 RIPE Region origin ASes present in the Internet Routing Table: 4636 RIPE Prefixes per ASN: 8.78 RIPE Region origin ASes announcing only one prefix: 2157 RIPE Region transit ASes present in the Internet Routing Table: 657 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: 1652 Number of RIPE addresses announced to Internet: 125302528 Equivalent to 7 /8s, 119 /16s and 247 /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: 12544 Total LACNIC prefixes after maximum aggregation: 4513 LACNIC Deaggregation factor: 2.78 Prefixes being announced from the LACNIC address blocks: 12034 Unique aggregates announced from the LACNIC address blocks: 5919 LACNIC Region origin ASes present in the Internet Routing Table: 2255 LACNIC Prefixes per ASN: 5.34 LACNIC Region origin ASes announcing only one prefix: 936 LACNIC Region transit ASes present in the Internet Routing Table: 493 Average LACNIC Region AS path length visible: 7.2 Max LACNIC Region AS path length visible: 52 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1887 Number of LACNIC addresses announced to Internet: 18186496 Equivalent to 1 /8s, 21 /16s and 129 /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: 1608 Total AfriNIC prefixes after maximum aggregation: 388 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 3457 Unique aggregates announced from the AfriNIC address blocks: 1670 AfriNIC Region origin ASes present in the Internet Routing Table: 103 AfriNIC Prefixes per ASN: 33.56 AfriNIC Region origin ASes announcing only one prefix: 41 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: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 51 Number of AfriNIC addresses announced to Internet: 5877504 Equivalent to 0 /8s, 89 /16s and 175 /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 10883 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4239 500 296 BBIL-AP BHARTI Airtel Ltd., IN 24560 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 56046 2057 812 180 CMNET-JIANGSU-AP China Mobile communicati 4766 1954 6030 913 KIXS-AS-KR Korea Telecom, KR 45609 1853 826 324 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56041 1637 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 2416 334 667 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2275 3696 1306 AMAZON-02, US 20115 2242 3095 518 CHARTER-20115, US 11492 1942 135 1048 CABLEONE, US 714 1243 4391 8 APPLE-ENGINEERING, US 8075 761 16021 643 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1882 301 TWC-10796-MIDWEST, US 12083 581 192 88 WOW-INTERNET, US 2152 401 45 267 CENIC-2152, US 33363 388 1424 215 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 2349 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 888 623 324 SAUDINETSTC-AS, SA 49505 861 92 355 SELECTEL, RU 9123 653 41 293 TIMEWEB-AS, RU 50010 618 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 487 191 179 KAZTELECOM-AS, KZ 9155 428 37 9 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 2112 694 290 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 125 10 26 CPS, AR 11340 109 9 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 557 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 39 2 31 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 10883 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4239 500 296 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 24560 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2416 334 667 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2349 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2275 3696 1306 AMAZON-02, US 20115 2242 3095 518 CHARTER-20115, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2112 694 290 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 4239 3943 BBIL-AP BHARTI Airtel Ltd., IN 24560 2881 2352 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 56046 2057 1877 CMNET-JIANGSU-AP China Mobile communications co 8151 2112 1822 UNINET, MX 30036 2416 1749 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2242 1724 CHARTER-20115, US 7552 2151 1694 VIETEL-AS-AP Viettel Group, VN 12389 2349 1567 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 56041 1637 1551 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 /14:160 /15:393 /16:2375 /17:1285 /18:2728 /19:4389 /20:7599 /21:9579 /22:17301 /23:16498 /24:96208 /25:0 /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 2101 2416 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1441 2349 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1334 1942 CABLEONE, US 8151 1156 2112 UNINET, MX 49505 598 861 SELECTEL, RU 20115 550 2242 CHARTER-20115, US 36914 533 557 KENET-AS, KE 9123 531 653 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) ---------------------------------------------- 1:159 2:323 3:105 5:1113 8:80 12:71 13:93 14:399 15:59 16:63 17:326 18:74 20:28 23:735 24:599 25:2 27:610 31:551 32:2 34:3 35:51 36:1967 37:641 38:539 39:696 40:1 41:253 42:117 43:679 44:22 45:2360 46:789 47:64 49:209 50:325 51:136 52:259 54:62 57:28 58:263 59:436 60:95 61:783 62:555 63:130 64:355 65:164 66:305 67:293 68:73 69:263 70:46 71:82 72:241 74:202 75:68 76:62 77:488 78:454 79:246 80:227 81:342 82:374 83:183 84:188 85:403 86:134 87:320 88:103 89:481 90:136 91:1382 92:455 93:955 94:780 95:1463 96:269 97:145 98:71 99:47 101:487 102:115 103:7829 104:381 105:9 106:292 107:110 108:175 109:441 110:223 111:2116 112:1003 113:299 114:832 115:372 116:434 117:1315 118:335 119:241 120:1338 121:424 122:1730 123:382 124:328 125:1592 126:6 128:377 129:61 130:120 131:189 132:51 133:302 134:137 135:22 136:78 137:166 138:333 139:123 140:324 141:151 142:82 143:170 144:117 145:148 146:331 147:216 148:350 149:193 150:212 151:533 152:449 153:38 154:894 155:201 156:474 157:273 158:125 159:383 160:627 161:151 162:274 163:328 164:172 165:231 166:42 167:172 168:581 169:75 170:464 171:194 172:238 173:982 174:124 175:556 176:731 177:495 178:686 179:189 180:451 181:156 182:1642 183:1135 184:138 185:2285 186:214 187:541 188:592 189:315 190:472 191:99 192:1742 193:1106 194:898 195:779 196:313 197:378 198:729 199:466 200:785 201:531 202:2363 203:1998 204:266 205:262 206:318 207:321 208:242 209:302 210:1383 211:1149 212:762 213:532 216:355 217:539 218:812 219:63 220:563 221:428 222:131 223:1253 End of report