IPv4 R&E Routing Table Report 20:30 GMT Sun 07 Sep, 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: 164668 Prefixes after maximum aggregation (per Origin AS): 62949 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 90832 Number of IPv4 prefixes with a valid ROA: 91472 Number of IPv4 prefixes with an invalid ROA: 65 Number of IPv4 prefixes with no ROA: 73131 Total ASes present in the Internet Routing Table: 14484 Prefixes per ASN: 11.37 Origin-only ASes present in the Internet Routing Table: 12235 Origin ASes announcing only one prefix: 5911 Transit ASes present in the Internet Routing Table: 2249 Transit-only ASes present in the Internet Routing Table: 543 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 6.8 Max AS path length visible: 53 Max AS path prepend of ASN (212940) 45 Prefixes from unregistered ASNs in the Routing Table: 84 Number of instances of unregistered ASNs: 84 Number of 32-bit ASNs allocated by the RIRs: 47358 Number of 32-bit ASNs visible in the Routing Table: 7148 Prefixes from 32-bit ASNs in the Routing Table: 30169 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: 37 Number of addresses announced to Internet: 480164096 Equivalent to 28 /8s, 158 /16s and 185 /24s Percentage of available address space announced: 13.0 Percentage of allocated address space announced: 13.0 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: 40550 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 83200 Total APNIC prefixes after maximum aggregation: 24201 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 81363 Unique aggregates announced from the APNIC address blocks: 35728 APNIC Region origin ASes present in the Internet Routing Table: 4816 APNIC Prefixes per ASN: 16.89 APNIC Region origin ASes announcing only one prefix: 1742 APNIC Region transit ASes present in the Internet Routing Table: 724 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3150 Number of APNIC addresses announced to Internet: 184299520 Equivalent to 10 /8s, 252 /16s and 48 /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: 26459 Total ARIN prefixes after maximum aggregation: 14324 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 26095 Unique aggregates announced from the ARIN address blocks: 21133 ARIN Region origin ASes present in the Internet Routing Table: 2107 ARIN Prefixes per ASN: 12.38 ARIN Region origin ASes announcing only one prefix: 1011 ARIN Region transit ASes present in the Internet Routing Table: 215 Average ARIN Region AS path length visible: 5.0 Max ARIN Region AS path length visible: 42 Number of ARIN region 32-bit ASNs visible in the Routing Table: 487 Number of ARIN addresses announced to Internet: 149588224 Equivalent to 8 /8s, 234 /16s and 137 /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: 41408 Total RIPE prefixes after maximum aggregation: 19758 RIPE Deaggregation factor: 2.10 Prefixes being announced from the RIPE address blocks: 42461 Unique aggregates announced from the RIPE address blocks: 26590 RIPE Region origin ASes present in the Internet Routing Table: 4840 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 2259 RIPE Region transit ASes present in the Internet Routing Table: 698 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 50 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1744 Number of RIPE addresses announced to Internet: 124007936 Equivalent to 7 /8s, 100 /16s and 54 /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: 11982 Total LACNIC prefixes after maximum aggregation: 4229 LACNIC Deaggregation factor: 2.83 Prefixes being announced from the LACNIC address blocks: 11620 Unique aggregates announced from the LACNIC address blocks: 5658 LACNIC Region origin ASes present in the Internet Routing Table: 2045 LACNIC Prefixes per ASN: 5.68 LACNIC Region origin ASes announcing only one prefix: 854 LACNIC Region transit ASes present in the Internet Routing Table: 467 Average LACNIC Region AS path length visible: 7.1 Max LACNIC Region AS path length visible: 31 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1712 Number of LACNIC addresses announced to Internet: 17103872 Equivalent to 1 /8s, 4 /16s and 252 /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: 1535 Total AfriNIC prefixes after maximum aggregation: 379 AfriNIC Deaggregation factor: 4.05 Prefixes being announced from the AfriNIC address blocks: 3092 Unique aggregates announced from the AfriNIC address blocks: 1690 AfriNIC Region origin ASes present in the Internet Routing Table: 107 AfriNIC Prefixes per ASN: 28.90 AfriNIC Region origin ASes announcing only one prefix: 45 AfriNIC Region transit ASes present in the Internet Routing Table: 32 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 55 Number of AfriNIC addresses announced to Internet: 5145600 Equivalent to 0 /8s, 78 /16s and 132 /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 12726 8729 116 CHINAMOBILE-CN China Mobile Communication 9498 4401 502 303 BBIL-AP BHARTI Airtel Ltd., IN 7552 3079 1177 270 VIETEL-AS-AP Viettel Group, VN 56046 2923 812 179 CMNET-JIANGSU-AP China Mobile communicati 24560 2915 862 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 1955 6030 939 KIXS-AS-KR Korea Telecom, KR 45609 1954 844 346 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56047 1690 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1678 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 9919 974 170 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 2514 349 620 MEDIACOM-ENTERPRISE-BUSINESS, US 16509 2405 3801 1421 AMAZON-02, US 20115 2235 3092 531 CHARTER-20115, US 11492 1905 132 1051 CABLEONE, US 714 1252 4391 8 APPLE-ENGINEERING, US 8075 816 16025 681 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 635 1879 297 TWC-10796-MIDWEST, US 12083 553 192 88 WOW-INTERNET, US 2152 450 50 278 CENIC-2152, US 33363 381 1424 213 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 2983 2201 946 ROSTELECOM-AS PJSC Rostelecom. Technical 49505 949 102 399 SELECTEL, RU 25019 879 608 382 SAUDINETSTC-AS, SA 9123 687 43 311 TIMEWEB-AS, RU 50010 498 72 10 NAWRAS-AS Sultanate of Oman, OM 5416 429 30 9 Internet Service Provider, BH 9155 429 37 9 QNET Kuwait, KW 21299 428 77 62 KAR-TEL-AS Almaty, Republic of Kazakhstan 50340 377 39 240 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 2457 709 243 UNINET, MX 8167 348 1079 81 V tal, BR 7738 303 920 90 V tal, BR 28201 219 16 28 Companhia Itabirana Telecomunicacoes Ltda 1916 205 177 41 Rede Nacional de Ensino e Pesquisa, BR 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 262287 141 24 123 Latitude.sh LTDA, BR 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11340 110 9 50 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 569 82 3 KENET-AS, KE 2018 374 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 23889 55 37 31 MauritiusTelecom, MU 10798 54 3 36 SBICSA, ZA 8094 47 48 18 PUKNET, ZA 37215 38 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37326 17 1 2 GICO, SO 327885 13 1 9 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 12726 8729 116 CHINAMOBILE-CN China Mobile Communication 9498 4401 502 303 BBIL-AP BHARTI Airtel Ltd., IN 39891 4180 255 53 ALJAWWALSTC-AS, SA 7552 3079 1177 270 VIETEL-AS-AP Viettel Group, VN 12389 2983 2201 946 ROSTELECOM-AS PJSC Rostelecom. Technical 56046 2923 812 179 CMNET-JIANGSU-AP China Mobile communicati 24560 2915 862 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2514 349 620 MEDIACOM-ENTERPRISE-BUSINESS, US 8151 2457 709 243 UNINET, MX 16509 2405 3801 1421 AMAZON-02, 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 4180 4127 ALJAWWALSTC-AS, SA 9498 4401 4098 BBIL-AP BHARTI Airtel Ltd., IN 7552 3079 2809 VIETEL-AS-AP Viettel Group, VN 56046 2923 2744 CMNET-JIANGSU-AP China Mobile communications co 24560 2915 2409 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 8151 2457 2214 UNINET, MX 12389 2983 2037 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 30036 2514 1894 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 1704 CHARTER-20115, US 56047 1690 1640 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 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 46123 UNALLOCATED 71.46.221.0/24 33363 BHN-33363, US 395888 UNALLOCATED 71.92.235.0/24 33588 BRESNAN-33588, 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 103.83.18.0/24 Origin: 133457 SSB-AS-AP ScopeTel Sdn Bhd, MY 103.83.18.0/24 Transit: 136400 ACG-AFG-AS-AP Asia Consultancy Group, AF 103.96.76.0/24 Origin: 132238 AHSL-AS-AP Array Health, NZ 103.96.76.0/24 Transit: 17981 CAMBOTECH-KH-AS Cambo TechnologyISP Co., 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 /10:12 /11:11 /12:45 /13:78 /14:146 /15:376 /16:2329 /17:1275 /18:2641 /19:4411 /20:7694 /21:10429 /22:17060 /23:16696 /24:101462 /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 2195 2514 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1903 2983 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 8151 1354 2457 UNINET, MX 11492 1313 1905 CABLEONE, US 49505 665 949 SELECTEL, RU 9123 561 687 TIMEWEB-AS, RU 20115 546 2235 CHARTER-20115, US 36914 545 569 KENET-AS, KE 16509 516 2405 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:212 2:301 3:122 5:1132 8:76 12:76 13:99 14:448 15:60 16:61 17:336 18:78 20:28 23:554 24:592 25:2 27:620 31:565 32:2 34:3 35:60 36:3103 37:621 38:553 39:752 40:2 41:255 42:118 43:697 44:19 45:2291 46:821 47:66 49:214 50:344 51:136 52:255 54:61 57:24 58:245 59:558 60:103 61:805 62:585 63:127 64:407 65:174 66:365 67:332 68:69 69:267 70:39 71:80 72:248 74:227 75:66 76:61 77:528 78:458 79:250 80:227 81:349 82:389 83:208 84:198 85:489 86:137 87:341 88:117 89:508 90:141 91:1431 92:453 93:979 94:875 95:1507 96:262 97:146 98:71 99:45 101:509 102:103 103:7975 104:341 105:9 106:291 107:145 108:176 109:541 110:260 111:2493 112:1310 113:285 114:884 115:316 116:406 117:1451 118:299 119:235 120:1569 121:378 122:1907 123:567 124:328 125:1630 126:6 128:388 129:70 130:105 131:187 132:66 133:313 134:115 135:35 136:85 137:182 138:293 139:130 140:311 141:155 142:81 143:151 144:133 145:138 146:366 147:245 148:368 149:226 150:223 151:584 152:461 153:45 154:771 155:218 156:555 157:269 158:131 159:393 160:648 161:157 162:278 163:354 164:156 165:275 166:54 167:146 168:293 169:68 170:453 171:227 172:181 173:1011 174:112 175:518 176:768 177:462 178:737 179:171 180:465 181:147 182:1659 183:1422 184:103 185:2417 186:222 187:638 188:741 189:344 190:385 191:91 192:1757 193:1161 194:980 195:827 196:298 197:403 198:744 199:498 200:805 201:590 202:2479 203:1893 204:275 205:264 206:344 207:353 208:239 209:326 210:1383 211:1209 212:857 213:516 216:412 217:580 218:861 219:52 220:583 221:535 222:130 223:1572 End of report