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 18 Jul, 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: 1055893 Prefixes after maximum aggregation (per Origin AS): 407174 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 525440 Number of IPv4 prefixes with a valid ROA: 713017 Number of IPv4 prefixes with an invalid ROA: 1327 Number of IPv4 prefixes with no ROA: 341549 Total ASes present in the Internet Routing Table: 78869 Prefixes per ASN: 13.39 Origin-only ASes present in the Internet Routing Table: 67592 Origin ASes announcing only one prefix: 27534 Transit ASes present in the Internet Routing Table: 11277 Transit-only ASes present in the Internet Routing Table: 599 Paths with bogon ASNs present in the IPv4 Routing Table: 316 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: 1402 Number of instances of unregistered ASNs: 1440 Number of 32-bit ASNs allocated by the RIRs: 50464 Number of 32-bit ASNs visible in the Routing Table: 41143 Prefixes from 32-bit ASNs in the Routing Table: 236660 Number of bogon 32-bit ASNs visible in the Routing Table: 151 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 493 Number of addresses announced to Internet: 3119208192 Equivalent to 185 /8s, 235 /16s and 87 /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: 348633 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282907 Total APNIC prefixes after maximum aggregation: 84115 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 268773 Unique aggregates announced from the APNIC address blocks: 109265 APNIC Region origin ASes present in the Internet Routing Table: 15272 APNIC Prefixes per ASN: 17.60 APNIC Region origin ASes announcing only one prefix: 4717 APNIC Region transit ASes present in the Internet Routing Table: 2049 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10889 Number of APNIC addresses announced to Internet: 748958976 Equivalent to 44 /8s, 164 /16s and 53 /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: 306158 Total ARIN prefixes after maximum aggregation: 137824 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 304613 Unique aggregates announced from the ARIN address blocks: 149766 ARIN Region origin ASes present in the Internet Routing Table: 19441 ARIN Prefixes per ASN: 15.67 ARIN Region origin ASes announcing only one prefix: 7102 ARIN Region transit ASes present in the Internet Routing Table: 1943 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: 5676 Number of ARIN addresses announced to Internet: 1348328960 Equivalent to 80 /8s, 93 /16s and 222 /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: 295383 Total RIPE prefixes after maximum aggregation: 146164 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 299574 Unique aggregates announced from the RIPE address blocks: 195602 RIPE Region origin ASes present in the Internet Routing Table: 29650 RIPE Prefixes per ASN: 10.10 RIPE Region origin ASes announcing only one prefix: 12263 RIPE Region transit ASes present in the Internet Routing Table: 4095 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: 13637 Number of RIPE addresses announced to Internet: 749570816 Equivalent to 44 /8s, 173 /16s and 139 /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: 129753 Total LACNIC prefixes after maximum aggregation: 31009 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 124413 Unique aggregates announced from the LACNIC address blocks: 50556 LACNIC Region origin ASes present in the Internet Routing Table: 11451 LACNIC Prefixes per ASN: 10.86 LACNIC Region origin ASes announcing only one prefix: 2740 LACNIC Region transit ASes present in the Internet Routing Table: 2630 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: 9527 Number of LACNIC addresses announced to Internet: 167999488 Equivalent to 10 /8s, 3 /16s and 120 /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: 40290 Total AfriNIC prefixes after maximum aggregation: 7272 AfriNIC Deaggregation factor: 5.54 Prefixes being announced from the AfriNIC address blocks: 58027 Unique aggregates announced from the AfriNIC address blocks: 19832 AfriNIC Region origin ASes present in the Internet Routing Table: 2051 AfriNIC Prefixes per ASN: 28.29 AfriNIC Region origin ASes announcing only one prefix: 712 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 56 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1414 Number of AfriNIC addresses announced to Internet: 104074496 Equivalent to 6 /8s, 52 /16s and 13 /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 14017 8737 120 CHINAMOBILE-CN - China Mobile Communicati 7545 5847 818 454 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5032 556 335 BBIL-AP - BHARTI Airtel Ltd., IN 7552 4074 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3758 1044 64 telkomnet-as-ap - PT Telekomunikasi Indon 17561 3669 231 624 LCS-AS-AP - LARUS Limited, HK 56046 3582 888 178 CMNET-Jiangsu-AP - China Mobile communica 45899 3381 1868 98 VNPT-AS-VN - VNPT Corp, VN 24560 2742 732 734 AIRTELBROADBAND-AS-AP - Bharti Airtel Ltd 140292 2520 275 1976 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 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 15585 41521 5624 AMAZON-02 - Amazon.com, Inc., US 22773 4785 3121 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4541 302 1151 CABLEONE - CABLE ONE, INC., US 7155 3962 286 111 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3722 1305 74 SHAW - Shaw Communications, CA 396982 3434 4872 530 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3164 238 1099 AS-COLOCROSSING - HostPapa, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 7029 2707 2551 878 WINDSTREAM - Windstream Communications LL 30036 2562 357 527 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7089 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4186 379 2570 M247 - M247 Europe SRL, RO 20940 3931 3389 111 AKAMAI-ASN1 - Akamai International B.V., 212238 3439 245 2583 CDNEXT - Datacamp Limited, GB 12389 3122 2325 872 ROSTELECOM-AS - PJSC Rostelecom, RU 34984 2494 367 588 TELLCOM-AS - Superonline Iletisim Hizmetl 8452 1716 1852 14 TE-AS - IDDQD-AS, EG 203020 1664 253 831 HostRoyale - HostRoyale Technologies Pvt 44559 1636 102 762 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 12816 3258 626 AS8151 - UNINET, MX 10620 3441 451 1105 AS10620 - Telmex Colombia S.A., CO 13999 2286 499 328 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1910 369 65 AS11830 - Instituto Costarricense de Elec 11664 1500 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1374 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 768 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1212 371 22 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1097 70 386 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1055 2385 96 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 1987 601 34 Vodafone Data - Vodafone Data, EG 36992 1925 1543 334 ETISALAT MISR - ETISALAT MISR, EG 36903 1351 587 105 Office National des Postes et Telecommuni 24863 1306 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1288 523 46 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 1055 188 278 Dimension Data - Dimension Data, ZA 328608 590 55 191 Africa on Cloud - Africa on Cloud, ZA 36873 571 141 36 Airtel Networks Limited - Airtel Networks 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 15585 41521 5624 AMAZON-02 - Amazon.com, Inc., US 9808 14017 8737 120 CHINAMOBILE-CN - China Mobile Communicati 8151 12816 3258 626 AS8151 - UNINET, MX 12479 7089 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5847 818 454 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5032 556 335 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4785 3121 363 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4541 302 1151 CABLEONE - CABLE ONE, INC., US 9009 4186 379 2570 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 14017 13897 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12816 12190 AS8151 - UNINET, MX 12479 7089 6939 UNI2-AS - Orange Espagne SA, ES 7545 5847 5393 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5032 4697 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4785 4422 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4074 4050 VIETEL-AS-AP - Viettel Group, VN 7155 3962 3851 VIASAT-SP-BACKBONE - ViaSat,Inc., US 20940 3931 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 64501 DOCUMENT 5.255.139.0/24 9140 HYPERNEPH - Hyperneph L 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 22442 HOU-PHONOSCOPE - Phonos 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 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 23.131.100.0/24 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 23.134.212.0/24 Origin: 8143 NEBUSRT - Neburst LLC, US 23.134.212.0/24 Transit: 17476 CHL-AS-AP - CloudRadium (HK) Limited, HK 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 /13:588 /14:1186 /15:2125 /16:13713 /17:8312 /18:13387 /19:25493 /20:45652 /21:52806 /22:113576 /23:109013 /24:669576 /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 7050 12816 AS8151 - UNINET, MX 12479 6012 7089 UNI2-AS - Orange Espagne SA, ES 39891 3660 4975 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3505 3722 SHAW - Shaw Communications, CA 11492 3440 4541 CABLEONE - CABLE ONE, INC., US 22773 3055 4785 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2943 15585 AMAZON-02 - Amazon.com, Inc., US 7155 2916 3962 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2245 3441 AS10620 - Telmex Colombia S.A., CO 30036 2216 2562 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) ---------------------------------------------- 1:1881 2:2338 3:1027 4:5 5:5257 6:205 7:6 8:1397 9:77 11:172 12:1093 13:791 14:2744 15:478 16:267 17:452 18:945 20:608 21:4 22:188 23:8577 24:2782 25:2 27:2794 28:6 29:19 31:3834 32:37 34:95 35:286 36:4852 37:4440 38:10069 39:1373 40:436 41:4765 42:1042 43:3302 44:465 45:20154 46:4994 47:458 48:168 49:2285 50:2012 51:862 52:1368 54:303 55:1167 56:11 57:334 58:2365 59:1346 60:1213 61:3183 62:3188 63:1741 64:6508 65:2151 66:6140 67:3315 68:1297 69:4090 70:1053 71:606 72:3270 74:3063 75:1513 76:593 77:2917 78:2110 79:1890 80:2384 81:2300 82:4259 83:1487 84:2169 85:3926 86:1094 87:2890 88:1319 89:4812 90:786 91:8521 92:2782 93:3047 94:4461 95:4723 96:1455 97:308 98:930 99:967 100:72 101:1346 102:5182 103:32398 104:5627 105:1294 106:897 107:2940 108:1325 109:3918 110:2280 111:4147 112:3117 113:1767 114:2506 115:2233 116:2075 117:3674 118:2607 119:2089 120:2778 121:1629 122:3034 123:2216 124:1729 125:2994 126:158 128:1564 129:1010 130:1707 131:2536 132:890 133:488 134:1755 135:652 136:1536 137:1380 138:3466 139:1794 140:1871 141:1735 142:2625 143:2125 144:1832 145:674 146:2189 147:2306 148:2815 149:3344 150:1372 151:2967 152:2401 153:1907 154:9948 155:2363 156:4670 157:2447 158:1613 159:2890 160:3934 161:2042 162:4177 163:2657 164:2400 165:2776 166:1303 167:2362 168:4307 169:920 170:5639 171:1131 172:4956 173:3479 174:889 175:1363 176:4046 177:5159 178:4508 179:2514 180:3222 181:4677 182:4029 183:2799 184:2051 185:22004 186:6547 187:5503 188:4741 189:4638 190:9946 191:1796 192:11821 193:9639 194:7960 195:5912 196:3786 197:3708 198:6140 199:6098 200:8276 201:6655 202:10500 203:10515 204:4717 205:3723 206:4442 207:3908 208:4333 209:5415 210:4622 211:2691 212:5199 213:4121 214:1026 215:47 216:7320 217:3762 218:1858 219:416 220:2282 221:1339 222:936 223:3591 End of report