This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from RENU's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 18:40 GMT Sat 29 Aug, 2026 IPv4 BGP Table (Global) as seen at RENU. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/RENU/ Analysis Summary ---------------- BGP routing table entries examined: 1064363 Prefixes after maximum aggregation (per Origin AS): 411054 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 529856 Number of IPv4 prefixes with a valid ROA: 735701 Number of IPv4 prefixes with an invalid ROA: 984 Number of IPv4 prefixes with no ROA: 327678 Total ASes present in the Internet Routing Table: 79136 Prefixes per ASN: 13.45 Origin-only ASes present in the Internet Routing Table: 67870 Origin ASes announcing only one prefix: 27719 Transit ASes present in the Internet Routing Table: 11266 Transit-only ASes present in the Internet Routing Table: 613 Paths with bogon ASNs present in the IPv4 Routing Table: 282 Average AS path length visible in the Internet Routing Table: 4.9 Max AS path length visible: 215 Max AS path prepend of ASN (205624) 210 Prefixes from unregistered ASNs in the Routing Table: 1320 Number of instances of unregistered ASNs: 1330 Number of 32-bit ASNs allocated by the RIRs: 51014 Number of 32-bit ASNs visible in the Routing Table: 41474 Prefixes from 32-bit ASNs in the Routing Table: 239975 Number of bogon 32-bit ASNs visible in the Routing Table: 39 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 512 Number of addresses announced to Internet: 3124067840 Equivalent to 186 /8s, 53 /16s and 126 /24s Percentage of available address space announced: 84.4 Percentage of allocated address space announced: 84.4 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: 353549 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283489 Total APNIC prefixes after maximum aggregation: 84988 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 269991 Unique aggregates announced from the APNIC address blocks: 109772 APNIC Region origin ASes present in the Internet Routing Table: 15287 APNIC Prefixes per ASN: 17.66 APNIC Region origin ASes announcing only one prefix: 4740 APNIC Region transit ASes present in the Internet Routing Table: 2029 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10916 Number of APNIC addresses announced to Internet: 748405760 Equivalent to 44 /8s, 155 /16s and 196 /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: 309250 Total ARIN prefixes after maximum aggregation: 138863 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 307135 Unique aggregates announced from the ARIN address blocks: 150998 ARIN Region origin ASes present in the Internet Routing Table: 19481 ARIN Prefixes per ASN: 15.77 ARIN Region origin ASes announcing only one prefix: 7154 ARIN Region transit ASes present in the Internet Routing Table: 1941 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 82 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5744 Number of ARIN addresses announced to Internet: 1353316864 Equivalent to 80 /8s, 169 /16s and 250 /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, 393216-404380 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: 298747 Total RIPE prefixes after maximum aggregation: 147723 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 304150 Unique aggregates announced from the RIPE address blocks: 198208 RIPE Region origin ASes present in the Internet Routing Table: 29802 RIPE Prefixes per ASN: 10.21 RIPE Region origin ASes announcing only one prefix: 12319 RIPE Region transit ASes present in the Internet Routing Table: 4091 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 215 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13808 Number of RIPE addresses announced to Internet: 750041344 Equivalent to 44 /8s, 180 /16s and 185 /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 196608-219547 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: 131309 Total LACNIC prefixes after maximum aggregation: 31508 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 125460 Unique aggregates announced from the LACNIC address blocks: 51387 LACNIC Region origin ASes present in the Internet Routing Table: 11482 LACNIC Prefixes per ASN: 10.93 LACNIC Region origin ASes announcing only one prefix: 2786 LACNIC Region transit ASes present in the Internet Routing Table: 2638 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9563 Number of LACNIC addresses announced to Internet: 168042240 Equivalent to 10 /8s, 4 /16s and 31 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 40248 Total AfriNIC prefixes after maximum aggregation: 7191 AfriNIC Deaggregation factor: 5.60 Prefixes being announced from the AfriNIC address blocks: 57115 Unique aggregates announced from the AfriNIC address blocks: 19053 AfriNIC Region origin ASes present in the Internet Routing Table: 2077 AfriNIC Prefixes per ASN: 27.50 AfriNIC Region origin ASes announcing only one prefix: 720 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 84 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1443 Number of AfriNIC addresses announced to Internet: 103983616 Equivalent to 6 /8s, 50 /16s and 170 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 14146 8736 125 CHINAMOBILE-CN - China Mobile Communicati 9498 5078 559 343 BBIL-AP - BHARTI Airtel Ltd., IN 7545 4638 831 275 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4072 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3660 1043 65 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3626 888 178 CMNET-Jiangsu-AP - China Mobile communica 45899 3371 1868 98 VNPT-AS-VN - VNPT Corp, VN 140292 3106 316 1809 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 17561 2848 179 491 LCS-AS-AP - LARUS Limited, HK 24560 2526 623 713 AIRTELBROADBAND-AS-AP - Bharti Airtel Ltd Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 16340 42643 5638 AMAZON-02 - Amazon.com, Inc., US 22773 4863 3186 424 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4607 306 1134 CABLEONE - CABLE ONE, INC., US 7155 3999 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3741 1305 74 SHAW - Shaw Communications, CA 396982 3464 4879 549 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3172 237 1112 AS-COLOCROSSING - HostPapa, US 749 3131 54647 2382 DNIC-AS-00749 - United States Department 7029 2777 2573 889 WINDSTREAM - Windstream Communications LL 31898 2685 1343 1151 ORACLE-BMC-31898 - Oracle Corporation, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6964 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4196 377 2554 M247 - M247 Europe SRL, RO 20940 3924 3388 104 AKAMAI-ASN1 - Akamai International B.V., 212238 3535 255 2664 CDNEXT - Datacamp Limited, GB 12389 3117 2329 866 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2520 150 27 KCELL-AS - Kcell JSC, KZ 34984 2513 369 585 TELLCOM-AS - Superonline Iletisim Hizmetl 44559 1940 121 917 ITHOSTLINE - IT HOSTLINE LTD, CY 8452 1721 1852 14 TE-AS - IDDQD-AS, EG Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 13101 3287 609 AS8151 - UNINET, MX 10620 3445 451 1108 AS10620 - Telmex Colombia S.A., CO 13999 2253 496 330 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1884 369 65 AS11830 - Instituto Costarricense de Elec 11664 1502 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1376 2431 274 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1266 762 224 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1195 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1100 70 385 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1089 75 55 AS27715 - Locaweb Servicos de Internet S/ Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1982 537 31 Vodafone Data - Vodafone Data, EG 36992 1929 1543 334 ETISALAT MISR - ETISALAT MISR, EG 36903 1352 588 105 Office National des Postes et Telecommuni 24863 1296 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1254 523 49 Vodafone Data - Vodafone Data, EG 37069 1120 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 20011 1074 190 280 Dimension Data - Dimension Data, ZA 36873 577 141 40 Airtel Networks Limited - Airtel Networks 15399 561 57 63 Wananchi Group (Kenya) Limited - Wananchi Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 16340 42643 5638 AMAZON-02 - Amazon.com, Inc., US 9808 14146 8736 125 CHINAMOBILE-CN - China Mobile Communicati 8151 13101 3287 609 AS8151 - UNINET, MX 12479 6964 1711 150 UNI2-AS - Orange Espagne SA, ES 9498 5078 559 343 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4863 3186 424 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 7545 4638 831 275 TPG-INTERNET-AP - TPG Telecom Limited, AU 11492 4607 306 1134 CABLEONE - CABLE ONE, INC., US 9009 4196 377 2554 M247 - M247 Europe SRL, RO Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 14146 14021 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13101 12492 AS8151 - UNINET, MX 12479 6964 6814 UNI2-AS - Orange Espagne SA, ES 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5078 4735 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4863 4439 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4638 4363 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4072 4048 VIETEL-AS-AP - Viettel Group, VN 7155 3999 3912 VIASAT-SP-BACKBONE - ViaSat,Inc., US 20940 3924 3820 AKAMAI-ASN1 - Akamai International B.V., NL Complete listing at https://bgp.nsrc.org/REN/RENU/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 394928 UNALLOCATED 8.2.70.0/24 6461 ZAYO-6461 - Zayo Bandwi 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887 - C 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174 - Cogent Com 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent 395195 UNALLOCATED 8.38.115.0/24 33132 CROWNCASTLE-AS33132 - C 397274 UNALLOCATED 8.40.70.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 394928 UNALLOCATED 8.44.162.0/24 6461 ZAYO-6461 - Zayo Bandwi 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI Complete listing at https://bgp.nsrc.org/REN/RENU/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.130.160.0/24 Origin: 16509 AMAZON-02 - Amazon.com, Inc., US 23.130.160.0/24 Transit: 3257 GTT-BACKBONE - GTT Communications Inc., 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C Complete listing at https://bgp.nsrc.org/REN/RENU/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 /8:16 /9:14 /10:39 /11:97 /12:300 /13:593 /14:1195 /15:2134 /16:13751 /17:8297 /18:13314 /19:25476 /20:45425 /21:53541 /22:113645 /23:110250 /24:676276 /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 8151 7275 13101 AS8151 - UNINET, MX 12479 5892 6964 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3522 3741 SHAW - Shaw Communications, CA 11492 3513 4607 CABLEONE - CABLE ONE, INC., US 16509 3165 16340 AMAZON-02 - Amazon.com, Inc., US 22773 3112 4863 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2952 3999 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2249 3445 AS10620 - Telmex Colombia S.A., CO 30036 2199 2547 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2013 2:2912 3:1129 4:5 5:5306 6:207 7:6 8:1349 9:100 11:172 12:1095 13:930 14:2683 15:485 16:270 17:463 18:1064 20:610 21:4 22:188 23:8607 24:2815 25:2 27:2873 28:7 29:19 31:3848 32:37 34:95 35:292 36:4912 37:4489 38:10325 39:1407 40:436 41:4796 42:1052 43:3403 44:507 45:19871 46:5013 47:462 48:171 49:2314 50:2013 51:907 52:1384 54:324 55:1069 56:11 57:338 58:2287 59:1366 60:1195 61:3235 62:3183 63:1710 64:6601 65:2179 66:6276 67:3336 68:1306 69:4118 70:1057 71:603 72:3268 74:3123 75:1611 76:590 77:3022 78:2152 79:1842 80:2390 81:2316 82:4381 83:1503 84:2140 85:3925 86:1138 87:3080 88:1342 89:4853 90:759 91:8534 92:2781 93:3058 94:4599 95:4811 96:1455 97:306 98:938 99:1003 100:65 101:1352 102:5354 103:32382 104:5693 105:1279 106:927 107:2990 108:1461 109:3993 110:2250 111:4225 112:3153 113:1657 114:2577 115:2246 116:2102 117:3874 118:2548 119:2085 120:2826 121:1818 122:3060 123:2215 124:1688 125:2998 126:156 128:1586 129:1020 130:1742 131:2536 132:886 133:492 134:1774 135:681 136:1567 137:1395 138:3438 139:1807 140:1869 141:1834 142:2656 143:2218 144:1869 145:692 146:2216 147:2369 148:2851 149:3649 150:1425 151:3007 152:2412 153:2094 154:9650 155:2384 156:4149 157:2463 158:1645 159:2945 160:4088 161:2116 162:4228 163:2705 164:2417 165:2777 166:1219 167:2391 168:4265 169:953 170:5640 171:1124 172:4937 173:3475 174:893 175:1407 176:4051 177:5622 178:4639 179:2779 180:3360 181:4661 182:4064 183:2621 184:2064 185:22071 186:6570 187:5766 188:4760 189:4787 190:10015 191:1876 192:11843 193:9638 194:7979 195:5988 196:3728 197:3707 198:6188 199:6128 200:8278 201:6823 202:10493 203:10564 204:4716 205:3723 206:4415 207:3942 208:4323 209:5464 210:4591 211:2715 212:5308 213:4176 214:1024 215:47 216:7309 217:3777 218:1920 219:418 220:2237 221:1435 222:970 223:3611 End of report