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 22 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: 1063293 Prefixes after maximum aggregation (per Origin AS): 409713 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 528520 Number of IPv4 prefixes with a valid ROA: 732426 Number of IPv4 prefixes with an invalid ROA: 1159 Number of IPv4 prefixes with no ROA: 329707 Total ASes present in the Internet Routing Table: 79090 Prefixes per ASN: 13.44 Origin-only ASes present in the Internet Routing Table: 67821 Origin ASes announcing only one prefix: 27699 Transit ASes present in the Internet Routing Table: 11269 Transit-only ASes present in the Internet Routing Table: 603 Paths with bogon ASNs present in the IPv4 Routing Table: 287 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: 1369 Number of instances of unregistered ASNs: 1407 Number of 32-bit ASNs allocated by the RIRs: 50926 Number of 32-bit ASNs visible in the Routing Table: 41425 Prefixes from 32-bit ASNs in the Routing Table: 239814 Number of bogon 32-bit ASNs visible in the Routing Table: 103 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 517 Number of addresses announced to Internet: 3119941120 Equivalent to 185 /8s, 246 /16s and 134 /24s Percentage of available address space announced: 84.3 Percentage of allocated address space announced: 84.3 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: 352560 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 284216 Total APNIC prefixes after maximum aggregation: 84094 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 270687 Unique aggregates announced from the APNIC address blocks: 109523 APNIC Region origin ASes present in the Internet Routing Table: 15277 APNIC Prefixes per ASN: 17.72 APNIC Region origin ASes announcing only one prefix: 4732 APNIC Region transit ASes present in the Internet Routing Table: 2028 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: 10898 Number of APNIC addresses announced to Internet: 748361728 Equivalent to 44 /8s, 155 /16s and 24 /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: 308158 Total ARIN prefixes after maximum aggregation: 138810 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 306414 Unique aggregates announced from the ARIN address blocks: 150749 ARIN Region origin ASes present in the Internet Routing Table: 19483 ARIN Prefixes per ASN: 15.73 ARIN Region origin ASes announcing only one prefix: 7166 ARIN Region transit ASes present in the Internet Routing Table: 1938 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: 5738 Number of ARIN addresses announced to Internet: 1350007552 Equivalent to 80 /8s, 119 /16s and 123 /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: 298170 Total RIPE prefixes after maximum aggregation: 147412 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 303375 Unique aggregates announced from the RIPE address blocks: 197528 RIPE Region origin ASes present in the Internet Routing Table: 29783 RIPE Prefixes per ASN: 10.19 RIPE Region origin ASes announcing only one prefix: 12318 RIPE Region transit ASes present in the Internet Routing Table: 4091 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: 13788 Number of RIPE addresses announced to Internet: 749817344 Equivalent to 44 /8s, 177 /16s and 78 /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: 131123 Total LACNIC prefixes after maximum aggregation: 31420 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 125314 Unique aggregates announced from the LACNIC address blocks: 51248 LACNIC Region origin ASes present in the Internet Routing Table: 11481 LACNIC Prefixes per ASN: 10.91 LACNIC Region origin ASes announcing only one prefix: 2773 LACNIC Region transit ASes present in the Internet Routing Table: 2651 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: 9568 Number of LACNIC addresses announced to Internet: 168133376 Equivalent to 10 /8s, 5 /16s and 131 /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: 40257 Total AfriNIC prefixes after maximum aggregation: 7184 AfriNIC Deaggregation factor: 5.60 Prefixes being announced from the AfriNIC address blocks: 56986 Unique aggregates announced from the AfriNIC address blocks: 19039 AfriNIC Region origin ASes present in the Internet Routing Table: 2064 AfriNIC Prefixes per ASN: 27.61 AfriNIC Region origin ASes announcing only one prefix: 710 AfriNIC Region transit ASes present in the Internet Routing Table: 382 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 68 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1433 Number of AfriNIC addresses announced to Internet: 103338496 Equivalent to 6 /8s, 40 /16s and 210 /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 14133 8736 124 CHINAMOBILE-CN - China Mobile Communicati 7545 5841 832 279 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5072 559 342 BBIL-AP - BHARTI Airtel Ltd., IN 7552 4079 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3656 1043 65 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3623 888 178 CMNET-Jiangsu-AP - China Mobile communica 45899 3375 1868 98 VNPT-AS-VN - VNPT Corp, VN 140292 3203 337 1846 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 17561 2862 180 501 LCS-AS-AP - LARUS Limited, HK 24560 2529 623 714 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 15962 42030 5645 AMAZON-02 - Amazon.com, Inc., US 22773 4864 3186 425 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4602 306 1138 CABLEONE - CABLE ONE, INC., US 7155 3998 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3740 1305 74 SHAW - Shaw Communications, CA 396982 3459 4879 546 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3176 237 1110 AS-COLOCROSSING - HostPapa, US 749 3131 54647 2382 DNIC-AS-00749 - United States Department 7029 2769 2573 890 WINDSTREAM - Windstream Communications LL 31898 2650 1341 1171 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 6978 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4190 377 2555 M247 - M247 Europe SRL, RO 20940 3930 3389 107 AKAMAI-ASN1 - Akamai International B.V., 212238 3541 256 2669 CDNEXT - Datacamp Limited, GB 12389 3121 2330 868 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2520 150 27 KCELL-AS - Kcell JSC, KZ 34984 2512 369 584 TELLCOM-AS - Superonline Iletisim Hizmetl 8452 1716 1852 14 TE-AS - IDDQD-AS, EG 44559 1697 106 785 ITHOSTLINE - IT HOSTLINE LTD, CY 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 13088 3285 612 AS8151 - UNINET, MX 10620 3444 451 1107 AS10620 - Telmex Colombia S.A., CO 13999 2264 499 331 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1884 369 65 AS11830 - Instituto Costarricense de Elec 11664 1499 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1377 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1266 762 224 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1193 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1096 70 384 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1049 2343 92 AS26615 - TIM S/A, BR 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 1928 1543 333 ETISALAT MISR - ETISALAT MISR, EG 36903 1350 587 104 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 1116 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 20011 1073 190 283 Dimension Data - Dimension Data, ZA 36873 576 141 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 15962 42030 5645 AMAZON-02 - Amazon.com, Inc., US 9808 14133 8736 124 CHINAMOBILE-CN - China Mobile Communicati 8151 13088 3285 612 AS8151 - UNINET, MX 12479 6978 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5841 832 279 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5072 559 342 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4864 3186 425 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4602 306 1138 CABLEONE - CABLE ONE, INC., US 9009 4190 377 2555 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 14133 14009 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13088 12476 AS8151 - UNINET, MX 12479 6978 6828 UNI2-AS - Orange Espagne SA, ES 7545 5841 5562 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5072 4730 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4864 4439 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4079 4055 VIETEL-AS-AP - Viettel Group, VN 7155 3998 3911 VIASAT-SP-BACKBONE - ViaSat,Inc., US 20940 3930 3823 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 /13:591 /14:1191 /15:2129 /16:13717 /17:8291 /18:13317 /19:25464 /20:45462 /21:53488 /22:113674 /23:110067 /24:675436 /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 7260 13088 AS8151 - UNINET, MX 12479 5909 6978 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3521 3740 SHAW - Shaw Communications, CA 11492 3507 4602 CABLEONE - CABLE ONE, INC., US 22773 3113 4864 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 3060 15962 AMAZON-02 - Amazon.com, Inc., US 7155 2951 3998 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2248 3444 AS10620 - Telmex Colombia S.A., CO 30036 2118 2451 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) ---------------------------------------------- 1:2008 2:2897 3:1026 4:5 5:5316 6:207 7:6 8:1357 9:97 11:172 12:1097 13:905 14:2745 15:488 16:269 17:463 18:959 20:610 21:4 22:188 23:8615 24:2725 25:2 27:2891 28:7 29:19 31:3853 32:37 34:95 35:291 36:4902 37:4482 38:10315 39:1393 40:424 41:4781 42:1055 43:3392 44:505 45:19812 46:5004 47:461 48:171 49:2322 50:2007 51:859 52:1371 54:325 55:1072 56:11 57:337 58:2437 59:1365 60:1257 61:3226 62:3178 63:1727 64:6613 65:2175 66:6262 67:3333 68:1307 69:4090 70:1053 71:603 72:3250 74:3113 75:1608 76:591 77:2979 78:2125 79:1836 80:2392 81:2313 82:4408 83:1498 84:2164 85:3910 86:1133 87:3087 88:1341 89:4867 90:765 91:8528 92:2748 93:3051 94:4557 95:4792 96:1453 97:306 98:941 99:981 100:65 101:1345 102:5341 103:32362 104:5666 105:1278 106:926 107:2986 108:1400 109:3973 110:2276 111:4216 112:3148 113:1782 114:2583 115:2243 116:2099 117:3868 118:2602 119:2079 120:2821 121:1822 122:3062 123:2226 124:1694 125:2996 126:156 128:1573 129:1019 130:1733 131:2535 132:882 133:492 134:1763 135:679 136:1573 137:1396 138:3434 139:1798 140:1871 141:1836 142:2645 143:2229 144:1879 145:676 146:2197 147:2342 148:2842 149:3640 150:1416 151:3009 152:2440 153:2051 154:9646 155:2402 156:4103 157:2466 158:1645 159:2933 160:4100 161:2099 162:4219 163:2691 164:2412 165:2786 166:1225 167:2397 168:4315 169:940 170:5649 171:1127 172:4932 173:3438 174:890 175:1404 176:4039 177:5587 178:4582 179:2769 180:3273 181:4666 182:4072 183:2833 184:2069 185:22063 186:6507 187:5747 188:4701 189:4750 190:10029 191:1863 192:11828 193:9657 194:7961 195:5936 196:3741 197:3706 198:6192 199:6140 200:8288 201:6763 202:10468 203:10567 204:4722 205:3717 206:4416 207:3940 208:4323 209:5414 210:4622 211:2713 212:5277 213:4148 214:1022 215:47 216:7333 217:3774 218:1917 219:417 220:2257 221:1458 222:1009 223:3611 End of report