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 01 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: 1058866 Prefixes after maximum aggregation (per Origin AS): 408066 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 526614 Number of IPv4 prefixes with a valid ROA: 716622 Number of IPv4 prefixes with an invalid ROA: 1184 Number of IPv4 prefixes with no ROA: 341060 Total ASes present in the Internet Routing Table: 78944 Prefixes per ASN: 13.41 Origin-only ASes present in the Internet Routing Table: 67667 Origin ASes announcing only one prefix: 27655 Transit ASes present in the Internet Routing Table: 11277 Transit-only ASes present in the Internet Routing Table: 616 Paths with bogon ASNs present in the IPv4 Routing Table: 292 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: 1388 Number of instances of unregistered ASNs: 1429 Number of 32-bit ASNs allocated by the RIRs: 50656 Number of 32-bit ASNs visible in the Routing Table: 41237 Prefixes from 32-bit ASNs in the Routing Table: 236955 Number of bogon 32-bit ASNs visible in the Routing Table: 116 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 498 Number of addresses announced to Internet: 3118764800 Equivalent to 185 /8s, 228 /16s and 147 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 350004 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 283078 Total APNIC prefixes after maximum aggregation: 84074 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 268971 Unique aggregates announced from the APNIC address blocks: 109218 APNIC Region origin ASes present in the Internet Routing Table: 15248 APNIC Prefixes per ASN: 17.64 APNIC Region origin ASes announcing only one prefix: 4725 APNIC Region transit ASes present in the Internet Routing Table: 2031 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: 10871 Number of APNIC addresses announced to Internet: 748450304 Equivalent to 44 /8s, 156 /16s and 114 /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: 306456 Total ARIN prefixes after maximum aggregation: 137964 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 305198 Unique aggregates announced from the ARIN address blocks: 150286 ARIN Region origin ASes present in the Internet Routing Table: 19478 ARIN Prefixes per ASN: 15.67 ARIN Region origin ASes announcing only one prefix: 7160 ARIN Region transit ASes present in the Internet Routing Table: 1930 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: 5714 Number of ARIN addresses announced to Internet: 1348260864 Equivalent to 80 /8s, 92 /16s and 212 /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: 297233 Total RIPE prefixes after maximum aggregation: 146577 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 301357 Unique aggregates announced from the RIPE address blocks: 195966 RIPE Region origin ASes present in the Internet Routing Table: 29681 RIPE Prefixes per ASN: 10.15 RIPE Region origin ASes announcing only one prefix: 12281 RIPE Region transit ASes present in the Internet Routing Table: 4092 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: 13686 Number of RIPE addresses announced to Internet: 749708544 Equivalent to 44 /8s, 175 /16s and 165 /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: 130545 Total LACNIC prefixes after maximum aggregation: 31398 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 124990 Unique aggregates announced from the LACNIC address blocks: 51075 LACNIC Region origin ASes present in the Internet Routing Table: 11473 LACNIC Prefixes per ASN: 10.89 LACNIC Region origin ASes announcing only one prefix: 2777 LACNIC Region transit ASes present in the Internet Routing Table: 2647 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: 9550 Number of LACNIC addresses announced to Internet: 168009472 Equivalent to 10 /8s, 3 /16s and 159 /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: 40166 Total AfriNIC prefixes after maximum aggregation: 7260 AfriNIC Deaggregation factor: 5.53 Prefixes being announced from the AfriNIC address blocks: 57852 Unique aggregates announced from the AfriNIC address blocks: 19644 AfriNIC Region origin ASes present in the Internet Routing Table: 2052 AfriNIC Prefixes per ASN: 28.19 AfriNIC Region origin ASes announcing only one prefix: 712 AfriNIC Region transit ASes present in the Internet Routing Table: 381 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: 1416 Number of AfriNIC addresses announced to Internet: 104058880 Equivalent to 6 /8s, 51 /16s and 208 /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 14103 8737 120 CHINAMOBILE-CN - China Mobile Communicati 7545 5837 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5062 558 342 BBIL-AP - BHARTI Airtel Ltd., IN 7552 4075 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3761 1044 63 telkomnet-as-ap - PT Telekomunikasi Indon 17561 3746 235 634 LCS-AS-AP - LARUS Limited, HK 56046 3591 888 179 CMNET-Jiangsu-AP - China Mobile communica 45899 3371 1868 98 VNPT-AS-VN - VNPT Corp, VN 24560 2689 705 743 AIRTELBROADBAND-AS-AP - Bharti Airtel Ltd 140292 2564 277 1996 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 15649 41521 5624 AMAZON-02 - Amazon.com, Inc., US 22773 4801 3166 369 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4616 306 1124 CABLEONE - CABLE ONE, INC., US 7155 3992 286 98 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3724 1305 74 SHAW - Shaw Communications, CA 396982 3450 4878 540 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3190 238 1118 AS-COLOCROSSING - HostPapa, US 749 3135 54727 2386 DNIC-AS-00749 - United States Department 7029 2724 2550 876 WINDSTREAM - Windstream Communications LL 30036 2551 357 551 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 7016 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4200 381 2577 M247 - M247 Europe SRL, RO 20940 3927 3389 110 AKAMAI-ASN1 - Akamai International B.V., 212238 3482 250 2624 CDNEXT - Datacamp Limited, GB 12389 3125 2330 872 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2549 151 25 KCELL-AS - Kcell JSC, KZ 34984 2488 367 585 TELLCOM-AS - Superonline Iletisim Hizmetl 44559 1918 120 918 ITHOSTLINE - IT HOSTLINE LTD, CY 8452 1714 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 12933 3288 615 AS8151 - UNINET, MX 10620 3444 451 1107 AS10620 - Telmex Colombia S.A., CO 13999 2281 499 332 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1897 369 65 AS11830 - Instituto Costarricense de Elec 11664 1493 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1372 2431 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 768 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1211 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1097 70 386 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1053 2384 95 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 1930 1543 333 ETISALAT MISR - ETISALAT MISR, EG 36903 1350 587 104 Office National des Postes et Telecommuni 24863 1319 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1274 523 48 Vodafone Data - Vodafone Data, EG 37069 1112 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 20011 1072 189 282 Dimension Data - Dimension Data, ZA 328608 595 55 192 Africa on Cloud - Africa on Cloud, ZA 36873 574 141 39 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 15649 41521 5624 AMAZON-02 - Amazon.com, Inc., US 9808 14103 8737 120 CHINAMOBILE-CN - China Mobile Communicati 8151 12933 3288 615 AS8151 - UNINET, MX 12479 7016 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5837 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5062 558 342 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4801 3166 369 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4616 306 1124 CABLEONE - CABLE ONE, INC., US 9009 4200 381 2577 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 14103 13983 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12933 12318 AS8151 - UNINET, MX 12479 7016 6866 UNI2-AS - Orange Espagne SA, ES 7545 5837 5387 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5062 4720 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4801 4432 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4075 4051 VIETEL-AS-AP - Viettel Group, VN 7155 3992 3894 VIASAT-SP-BACKBONE - ViaSat,Inc., US 20940 3927 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 23.131.100.0/24 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: 32217 GPIEX - GPIEX INC, US 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE - GTT Communications Inc., 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 /13:587 /14:1188 /15:2127 /16:13733 /17:8310 /18:13302 /19:25483 /20:45455 /21:53499 /22:113540 /23:109790 /24:671386 /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 7124 12933 AS8151 - UNINET, MX 12479 5943 7016 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 11492 3511 4616 CABLEONE - CABLE ONE, INC., US 6327 3507 3724 SHAW - Shaw Communications, CA 22773 3056 4801 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2961 15649 AMAZON-02 - Amazon.com, Inc., US 7155 2946 3992 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2248 3444 AS10620 - Telmex Colombia S.A., CO 30036 2206 2551 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) ---------------------------------------------- 1:1925 2:2855 3:1026 4:5 5:5275 6:206 7:6 8:1368 9:94 11:172 12:1103 13:813 14:2734 15:483 16:259 17:455 18:944 20:609 21:4 22:188 23:8601 24:2786 25:2 27:2803 28:5 29:19 31:3827 32:37 34:95 35:290 36:4872 37:4460 38:10161 39:1377 40:437 41:4779 42:1042 43:3309 44:476 45:20110 46:5000 47:458 48:168 49:2280 50:2012 51:794 52:1374 54:306 55:1243 56:11 57:334 58:2385 59:1349 60:1213 61:3187 62:3180 63:1749 64:6548 65:2144 66:6226 67:3342 68:1284 69:4072 70:1054 71:603 72:3264 74:3053 75:1598 76:593 77:2931 78:2112 79:1832 80:2377 81:2298 82:4267 83:1484 84:2164 85:3914 86:1107 87:2879 88:1324 89:4822 90:768 91:8506 92:2749 93:3040 94:4485 95:4747 96:1457 97:311 98:931 99:971 100:73 101:1349 102:5187 103:32328 104:5653 105:1286 106:914 107:2979 108:1339 109:3921 110:2277 111:4188 112:3138 113:1768 114:2504 115:2244 116:2085 117:3681 118:2591 119:2063 120:2802 121:1645 122:3030 123:2209 124:1678 125:2996 126:156 128:1571 129:1008 130:1704 131:2527 132:882 133:493 134:1765 135:650 136:1555 137:1383 138:3430 139:1798 140:1869 141:1809 142:2621 143:2151 144:1866 145:697 146:2180 147:2305 148:2809 149:3604 150:1404 151:2954 152:2422 153:1944 154:9965 155:2381 156:4663 157:2451 158:1627 159:2896 160:3958 161:2054 162:4213 163:2668 164:2393 165:2784 166:1208 167:2369 168:4253 169:923 170:5635 171:1128 172:4942 173:3477 174:889 175:1384 176:4034 177:5318 178:4523 179:2513 180:3218 181:4679 182:4047 183:2825 184:2053 185:22022 186:6562 187:5566 188:4750 189:4686 190:9964 191:1782 192:11826 193:9646 194:7985 195:5908 196:3768 197:3619 198:6181 199:6115 200:8314 201:6683 202:10465 203:10522 204:4713 205:3696 206:4394 207:3931 208:4326 209:5410 210:4624 211:2711 212:5223 213:4135 214:1025 215:47 216:7308 217:3764 218:1873 219:416 220:2278 221:1349 222:943 223:3588 End of report