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 05 Sep, 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: 1065973 Prefixes after maximum aggregation (per Origin AS): 411915 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 531099 Number of IPv4 prefixes with a valid ROA: 739212 Number of IPv4 prefixes with an invalid ROA: 1079 Number of IPv4 prefixes with no ROA: 325682 Total ASes present in the Internet Routing Table: 79213 Prefixes per ASN: 13.46 Origin-only ASes present in the Internet Routing Table: 67911 Origin ASes announcing only one prefix: 27753 Transit ASes present in the Internet Routing Table: 11302 Transit-only ASes present in the Internet Routing Table: 608 Paths with bogon ASNs present in the IPv4 Routing Table: 301 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: 1314 Number of instances of unregistered ASNs: 1324 Number of 32-bit ASNs allocated by the RIRs: 51138 Number of 32-bit ASNs visible in the Routing Table: 41567 Prefixes from 32-bit ASNs in the Routing Table: 241024 Number of bogon 32-bit ASNs visible in the Routing Table: 40 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 528 Number of addresses announced to Internet: 3123949056 Equivalent to 186 /8s, 51 /16s and 174 /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: 354333 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283354 Total APNIC prefixes after maximum aggregation: 85187 APNIC Deaggregation factor: 3.33 Prefixes being announced from the APNIC address blocks: 270236 Unique aggregates announced from the APNIC address blocks: 110194 APNIC Region origin ASes present in the Internet Routing Table: 15309 APNIC Prefixes per ASN: 17.65 APNIC Region origin ASes announcing only one prefix: 4750 APNIC Region transit ASes present in the Internet Routing Table: 2036 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: 10928 Number of APNIC addresses announced to Internet: 748613888 Equivalent to 44 /8s, 158 /16s and 241 /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: 309649 Total ARIN prefixes after maximum aggregation: 138990 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 307861 Unique aggregates announced from the ARIN address blocks: 151533 ARIN Region origin ASes present in the Internet Routing Table: 19486 ARIN Prefixes per ASN: 15.80 ARIN Region origin ASes announcing only one prefix: 7165 ARIN Region transit ASes present in the Internet Routing Table: 1942 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 65 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5760 Number of ARIN addresses announced to Internet: 1353541888 Equivalent to 80 /8s, 173 /16s and 105 /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: 299567 Total RIPE prefixes after maximum aggregation: 148256 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 304554 Unique aggregates announced from the RIPE address blocks: 198628 RIPE Region origin ASes present in the Internet Routing Table: 29844 RIPE Prefixes per ASN: 10.20 RIPE Region origin ASes announcing only one prefix: 12342 RIPE Region transit ASes present in the Internet Routing Table: 4113 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 215 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13854 Number of RIPE addresses announced to Internet: 749735680 Equivalent to 44 /8s, 176 /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 196608-219547 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: 131727 Total LACNIC prefixes after maximum aggregation: 31510 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 125818 Unique aggregates announced from the LACNIC address blocks: 51396 LACNIC Region origin ASes present in the Internet Routing Table: 11496 LACNIC Prefixes per ASN: 10.94 LACNIC Region origin ASes announcing only one prefix: 2763 LACNIC Region transit ASes present in the Internet Routing Table: 2647 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9576 Number of LACNIC addresses announced to Internet: 167852544 Equivalent to 10 /8s, 1 /16s and 58 /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: 40362 Total AfriNIC prefixes after maximum aggregation: 7195 AfriNIC Deaggregation factor: 5.61 Prefixes being announced from the AfriNIC address blocks: 56976 Unique aggregates announced from the AfriNIC address blocks: 18914 AfriNIC Region origin ASes present in the Internet Routing Table: 2083 AfriNIC Prefixes per ASN: 27.35 AfriNIC Region origin ASes announcing only one prefix: 733 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 68 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1449 Number of AfriNIC addresses announced to Internet: 103921920 Equivalent to 6 /8s, 49 /16s and 185 /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 14022 8735 127 CHINAMOBILE-CN - China Mobile Communicati 9498 5099 561 347 BBIL-AP - BHARTI Airtel Ltd., IN 7545 4633 825 315 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4045 1331 24 VIETEL-AS-AP - Viettel Group, VN 56046 3628 888 178 CMNET-Jiangsu-AP - China Mobile communica 7713 3572 1043 69 telkomnet-as-ap - PT Telekomunikasi Indon 45899 3372 1868 98 VNPT-AS-VN - VNPT Corp, VN 140292 3108 316 1811 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 24560 2493 596 704 AIRTELBROADBAND-AS-AP - Bharti Airtel Ltd 17561 2475 156 443 LCS-AS-AP - LARUS Limited, HK 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 16449 42640 5664 AMAZON-02 - Amazon.com, Inc., US 22773 4850 3136 415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4602 306 1137 CABLEONE - CABLE ONE, INC., US 7155 3999 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3746 1305 74 SHAW - Shaw Communications, CA 396982 3471 4880 552 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3176 237 1113 AS-COLOCROSSING - HostPapa, US 749 3132 54647 2383 DNIC-AS-00749 - United States Department 7029 2825 2583 891 WINDSTREAM - Windstream Communications LL 31898 2730 1354 1153 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 6954 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4224 379 2573 M247 - M247 Europe SRL, RO 20940 3921 3388 104 AKAMAI-ASN1 - Akamai International B.V., 212238 3590 260 2713 CDNEXT - Datacamp Limited, GB 12389 3119 2329 866 ROSTELECOM-AS - PJSC Rostelecom, RU 34984 2529 371 594 TELLCOM-AS - Superonline Iletisim Hizmetl 29355 2523 154 27 KCELL-AS - Kcell JSC, KZ 44559 1905 119 931 ITHOSTLINE - IT HOSTLINE LTD, CY 3257 1753 2088 994 GTT-BACKBONE - GTT Communications Inc., U 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 13134 3281 613 AS8151 - UNINET, MX 10620 3411 443 1115 AS10620 - Telmex Colombia S.A., CO 13999 2245 495 327 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1878 369 65 AS11830 - Instituto Costarricense de Elec 11664 1505 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1377 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 1099 70 384 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1076 75 52 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 1979 509 28 Vodafone Data - Vodafone Data, EG 36992 1929 1543 328 ETISALAT MISR - ETISALAT MISR, EG 24863 1398 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1352 588 105 Office National des Postes et Telecommuni 36935 1286 523 49 Vodafone Data - Vodafone Data, EG 37069 1128 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 20011 1081 190 278 Dimension Data - Dimension Data, ZA 15399 561 57 63 Wananchi Group (Kenya) Limited - Wananchi 36914 552 82 3 Kenya Education Network - Kenya Education 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 16449 42640 5664 AMAZON-02 - Amazon.com, Inc., US 9808 14022 8735 127 CHINAMOBILE-CN - China Mobile Communicati 8151 13134 3281 613 AS8151 - UNINET, MX 12479 6954 1711 150 UNI2-AS - Orange Espagne SA, ES 9498 5099 561 347 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4850 3136 415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 7545 4633 825 315 TPG-INTERNET-AP - TPG Telecom Limited, AU 11492 4602 306 1137 CABLEONE - CABLE ONE, INC., US 9009 4224 379 2573 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 14022 13895 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13134 12521 AS8151 - UNINET, MX 12479 6954 6804 UNI2-AS - Orange Espagne SA, ES 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5099 4752 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4850 4435 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4633 4318 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4045 4021 VIETEL-AS-AP - Viettel Group, VN 7155 3999 3912 VIASAT-SP-BACKBONE - ViaSat,Inc., US 20940 3921 3817 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 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.112.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.123.0/24 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 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 /15:2133 /16:13757 /17:8286 /18:13341 /19:25473 /20:45393 /21:53524 /22:113718 /23:110478 /24:677616 /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 7311 13134 AS8151 - UNINET, MX 12479 5880 6954 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3527 3746 SHAW - Shaw Communications, CA 11492 3514 4602 CABLEONE - CABLE ONE, INC., US 16509 3197 16449 AMAZON-02 - Amazon.com, Inc., US 22773 3106 4850 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2952 3999 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2246 3411 AS10620 - Telmex Colombia S.A., CO 30036 2191 2539 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) ---------------------------------------------- 1:2015 2:2921 3:1189 4:5 5:5321 6:215 7:6 8:1350 9:99 11:172 12:1099 13:924 14:2675 15:487 16:274 17:463 18:1081 20:610 21:4 22:188 23:8620 24:2784 25:2 27:2873 28:7 29:19 31:3894 32:36 34:95 35:292 36:4916 37:4475 38:10387 39:1415 40:450 41:4820 42:1055 43:3420 44:506 45:19949 46:5029 47:461 48:171 49:2320 50:2018 51:946 52:1387 54:331 55:1082 56:11 57:338 58:2283 59:1373 60:1197 61:3330 62:3186 63:1700 64:6656 65:2175 66:6320 67:3339 68:1312 69:4133 70:1057 71:605 72:3280 74:3142 75:1614 76:589 77:2951 78:2148 79:1877 80:2401 81:2310 82:4365 83:1500 84:2138 85:3929 86:1140 87:3051 88:1341 89:4883 90:769 91:8538 92:2770 93:3058 94:4652 95:4799 96:1457 97:306 98:945 99:1005 100:65 101:1363 102:5338 103:32399 104:5703 105:1224 106:928 107:3000 108:1497 109:3963 110:2232 111:4224 112:3148 113:1656 114:2585 115:2247 116:2096 117:3885 118:2504 119:2086 120:2855 121:1817 122:3056 123:2218 124:1688 125:2983 126:156 128:1587 129:1015 130:1743 131:2546 132:878 133:486 134:1791 135:681 136:1589 137:1406 138:3451 139:1807 140:1876 141:1847 142:2667 143:2281 144:1905 145:714 146:2206 147:2379 148:2895 149:3641 150:1429 151:3040 152:2430 153:2102 154:9362 155:2377 156:4132 157:2458 158:1657 159:2941 160:4115 161:2099 162:4231 163:2710 164:2426 165:2790 166:1248 167:2389 168:4329 169:975 170:5637 171:1130 172:4945 173:3468 174:894 175:1421 176:4048 177:5683 178:4663 179:2759 180:3359 181:4687 182:4066 183:2627 184:2066 185:22078 186:6611 187:5824 188:4780 189:4818 190:10021 191:1888 192:11844 193:9637 194:7975 195:5993 196:3726 197:3709 198:6197 199:6145 200:8325 201:6887 202:10499 203:10553 204:4723 205:3728 206:4429 207:3942 208:4320 209:5486 210:4624 211:2716 212:5320 213:4166 214:1029 215:50 216:7345 217:3793 218:1921 219:416 220:2235 221:1439 222:974 223:3619 End of report