IPv4 R&E Routing Table Report 20:30 GMT Sun 08 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: 160420 Prefixes after maximum aggregation (per Origin AS): 63702 Deaggregation factor: 2.52 Unique aggregates announced (without unneeded subnets): 90512 Number of IPv4 prefixes with a valid ROA: 88568 Number of IPv4 prefixes with an invalid ROA: 79 Number of IPv4 prefixes with no ROA: 71773 Total ASes present in the Internet Routing Table: 14678 Prefixes per ASN: 10.93 Origin-only ASes present in the Internet Routing Table: 12419 Origin ASes announcing only one prefix: 6010 Transit ASes present in the Internet Routing Table: 2259 Transit-only ASes present in the Internet Routing Table: 491 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: 46629 Number of 32-bit ASNs visible in the Routing Table: 7266 Prefixes from 32-bit ASNs in the Routing Table: 30273 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: 35 Number of addresses announced to Internet: 505006336 Equivalent to 30 /8s, 25 /16s and 201 /24s Percentage of available address space announced: 13.6 Percentage of allocated address space announced: 13.6 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: 39303 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79048 Total APNIC prefixes after maximum aggregation: 25044 APNIC Deaggregation factor: 3.16 Prefixes being announced from the APNIC address blocks: 77287 Unique aggregates announced from the APNIC address blocks: 36520 APNIC Region origin ASes present in the Internet Routing Table: 4976 APNIC Prefixes per ASN: 15.53 APNIC Region origin ASes announcing only one prefix: 1844 APNIC Region transit ASes present in the Internet Routing Table: 744 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: 3178 Number of APNIC addresses announced to Internet: 188395776 Equivalent to 11 /8s, 58 /16s and 177 /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: 26866 Total ARIN prefixes after maximum aggregation: 14621 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 26542 Unique aggregates announced from the ARIN address blocks: 20546 ARIN Region origin ASes present in the Internet Routing Table: 2141 ARIN Prefixes per ASN: 12.40 ARIN Region origin ASes announcing only one prefix: 1006 ARIN Region transit ASes present in the Internet Routing Table: 219 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: 477 Number of ARIN addresses announced to Internet: 166983680 Equivalent to 9 /8s, 243 /16s and 248 /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: 40193 Total RIPE prefixes after maximum aggregation: 19042 RIPE Deaggregation factor: 2.11 Prefixes being announced from the RIPE address blocks: 40970 Unique aggregates announced from the RIPE address blocks: 25783 RIPE Region origin ASes present in the Internet Routing Table: 4672 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 2170 RIPE Region transit ASes present in the Internet Routing Table: 669 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: 1663 Number of RIPE addresses announced to Internet: 125432832 Equivalent to 7 /8s, 121 /16s and 244 /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: 12649 Total LACNIC prefixes after maximum aggregation: 4563 LACNIC Deaggregation factor: 2.77 Prefixes being announced from the LACNIC address blocks: 12139 Unique aggregates announced from the LACNIC address blocks: 5971 LACNIC Region origin ASes present in the Internet Routing Table: 2276 LACNIC Prefixes per ASN: 5.33 LACNIC Region origin ASes announcing only one prefix: 949 LACNIC Region transit ASes present in the Internet Routing Table: 492 Average LACNIC Region AS path length visible: 7.4 Max LACNIC Region AS path length visible: 52 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1897 Number of LACNIC addresses announced to Internet: 18299904 Equivalent to 1 /8s, 23 /16s and 60 /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: 1594 Total AfriNIC prefixes after maximum aggregation: 382 AfriNIC Deaggregation factor: 4.17 Prefixes being announced from the AfriNIC address blocks: 3447 Unique aggregates announced from the AfriNIC address blocks: 1662 AfriNIC Region origin ASes present in the Internet Routing Table: 102 AfriNIC Prefixes per ASN: 33.79 AfriNIC Region origin ASes announcing only one prefix: 41 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: 51 Number of AfriNIC addresses announced to Internet: 5874688 Equivalent to 0 /8s, 89 /16s and 164 /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 4237 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 1957 6030 914 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 2429 336 641 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2278 3696 1309 AMAZON-02, US 20115 2243 3096 513 CHARTER-20115, US 11492 1942 135 1048 CABLEONE, US 714 1243 4391 8 APPLE-ENGINEERING, US 8075 760 16021 642 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 887 623 323 SAUDINETSTC-AS, SA 49505 860 92 354 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 2118 694 295 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 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 552 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 10883 8756 98 CHINAMOBILE-CN China Mobile Communication 9498 4237 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 2429 336 641 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2349 1992 782 ROSTELECOM-AS PJSC Rostelecom. Technical 16509 2278 3696 1309 AMAZON-02, US 20115 2243 3096 513 CHARTER-20115, US 7552 2151 1067 457 VIETEL-AS-AP Viettel Group, VN 8151 2118 694 295 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 4237 3941 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 2118 1823 UNINET, MX 30036 2429 1788 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2243 1730 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 /14:162 /15:395 /16:2472 /17:1299 /18:2751 /19:4432 /20:7653 /21:9648 /22:17437 /23:16684 /24:97328 /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 2112 2429 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1441 2349 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1334 1942 CABLEONE, US 8151 1159 2118 UNINET, MX 49505 598 860 SELECTEL, RU 20115 550 2243 CHARTER-20115, US 9123 531 653 TIMEWEB-AS, RU 36914 528 552 KENET-AS, KE 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) ---------------------------------------------- 1:161 2:323 3:105 5:1114 8:80 12:71 13:93 14:399 15:60 16:63 17:326 18:74 20:28 23:717 24:599 25:2 27:609 31:553 32:2 34:3 35:52 36:1967 37:644 38:539 39:695 40:1 41:247 42:118 43:678 44:22 45:2359 46:801 47:64 49:209 50:326 51:136 52:259 54:62 57:28 58:263 59:436 60:95 61:781 62:564 63:130 64:357 65:164 66:315 67:293 68:73 69:263 70:46 71:82 72:241 74:216 75:68 76:62 77:496 78:454 79:246 80:228 81:343 82:377 83:187 84:195 85:403 86:134 87:320 88:105 89:482 90:136 91:1389 92:458 93:956 94:782 95:1478 96:269 97:145 98:71 99:47 101:487 102:113 103:7891 104:381 105:9 106:293 107:111 108:175 109:454 110:224 111:2116 112:1003 113:299 114:841 115:371 116:435 117:1377 118:335 119:241 120:1340 121:424 122:1727 123:390 124:329 125:1593 126:6 128:377 129:61 130:125 131:208 132:74 133:302 134:165 135:22 136:78 137:166 138:332 139:127 140:326 141:150 142:84 143:168 144:117 145:148 146:331 147:222 148:351 149:193 150:218 151:533 152:448 153:38 154:895 155:202 156:483 157:274 158:129 159:383 160:625 161:149 162:275 163:330 164:172 165:230 166:42 167:172 168:580 169:75 170:467 171:194 172:238 173:992 174:124 175:560 176:732 177:493 178:687 179:189 180:452 181:156 182:1642 183:1135 184:138 185:2305 186:214 187:547 188:602 189:317 190:490 191:99 192:1890 193:1117 194:904 195:785 196:313 197:375 198:773 199:526 200:803 201:536 202:2408 203:2186 204:287 205:266 206:321 207:323 208:245 209:314 210:1480 211:1153 212:766 213:532 216:355 217:551 218:814 219:63 220:572 221:428 222:132 223:1253 End of report