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 09 May, 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: 1043455 Prefixes after maximum aggregation (per Origin AS): 401404 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 517149 Number of IPv4 prefixes with a valid ROA: 640386 Number of IPv4 prefixes with an invalid ROA: 1238 Number of IPv4 prefixes with no ROA: 401831 Total ASes present in the Internet Routing Table: 78455 Prefixes per ASN: 13.30 Origin-only ASes present in the Internet Routing Table: 67278 Origin ASes announcing only one prefix: 27420 Transit ASes present in the Internet Routing Table: 11177 Transit-only ASes present in the Internet Routing Table: 593 Paths with bogon ASNs present in the IPv4 Routing Table: 266 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: 1096 Number of instances of unregistered ASNs: 1138 Number of 32-bit ASNs allocated by the RIRs: 49709 Number of 32-bit ASNs visible in the Routing Table: 40587 Prefixes from 32-bit ASNs in the Routing Table: 230662 Number of bogon 32-bit ASNs visible in the Routing Table: 129 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 427 Number of addresses announced to Internet: 3103202560 Equivalent to 184 /8s, 247 /16s and 29 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 343842 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 279640 Total APNIC prefixes after maximum aggregation: 82819 APNIC Deaggregation factor: 3.38 Prefixes being announced from the APNIC address blocks: 265952 Unique aggregates announced from the APNIC address blocks: 107927 APNIC Region origin ASes present in the Internet Routing Table: 15155 APNIC Prefixes per ASN: 17.55 APNIC Region origin ASes announcing only one prefix: 4648 APNIC Region transit ASes present in the Internet Routing Table: 2026 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 45 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10761 Number of APNIC addresses announced to Internet: 747668480 Equivalent to 44 /8s, 144 /16s and 132 /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: 302444 Total ARIN prefixes after maximum aggregation: 136399 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301822 Unique aggregates announced from the ARIN address blocks: 147668 ARIN Region origin ASes present in the Internet Routing Table: 19428 ARIN Prefixes per ASN: 15.54 ARIN Region origin ASes announcing only one prefix: 7128 ARIN Region transit ASes present in the Internet Routing Table: 1931 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 58 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5574 Number of ARIN addresses announced to Internet: 1347686144 Equivalent to 80 /8s, 84 /16s and 15 /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: 291531 Total RIPE prefixes after maximum aggregation: 143428 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 294347 Unique aggregates announced from the RIPE address blocks: 191512 RIPE Region origin ASes present in the Internet Routing Table: 29488 RIPE Prefixes per ASN: 9.98 RIPE Region origin ASes announcing only one prefix: 12211 RIPE Region transit ASes present in the Internet Routing Table: 4049 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: 13413 Number of RIPE addresses announced to Internet: 733448960 Equivalent to 43 /8s, 183 /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 196608-216475 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: 128805 Total LACNIC prefixes after maximum aggregation: 30896 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 123205 Unique aggregates announced from the LACNIC address blocks: 50242 LACNIC Region origin ASes present in the Internet Routing Table: 11400 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2719 LACNIC Region transit ASes present in the Internet Routing Table: 2596 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: 9444 Number of LACNIC addresses announced to Internet: 169806592 Equivalent to 10 /8s, 31 /16s and 11 /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: 39939 Total AfriNIC prefixes after maximum aggregation: 7197 AfriNIC Deaggregation factor: 5.55 Prefixes being announced from the AfriNIC address blocks: 57702 Unique aggregates announced from the AfriNIC address blocks: 19430 AfriNIC Region origin ASes present in the Internet Routing Table: 2030 AfriNIC Prefixes per ASN: 28.42 AfriNIC Region origin ASes announcing only one prefix: 714 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: 62 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1395 Number of AfriNIC addresses announced to Internet: 104395008 Equivalent to 6 /8s, 56 /16s and 241 /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 13868 8761 121 CHINAMOBILE-CN China Mobile Communication 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4937 551 321 BBIL-AP BHARTI Airtel Ltd., IN 7552 4053 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3719 1044 64 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3539 887 177 CMNET-JIANGSU-AP China Mobile communicati 17561 3465 218 588 LCS-AS-AP LARUS Limited, HK 45899 3358 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2838 785 706 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2507 273 1955 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14935 41296 5703 AMAZON-02 - Amazon.com, Inc., US 22773 4779 3116 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1055 CABLEONE - CABLE ONE, INC., US 7155 3867 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3716 1305 75 SHAW - Shaw Communications, CA 396982 3335 4865 504 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 2917 222 905 AS-COLOCROSSING - HostPapa, US 7029 2648 2558 917 WINDSTREAM - Windstream Communications LL 30036 2612 359 455 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 7183 1711 149 UNI2-AS, ES 39891 4975 307 72 ALJAWWALSTC-AS, SA 9009 3936 362 2317 M247, RO 20940 3918 3389 110 AKAMAI-ASN1, NL 12389 3144 2321 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2771 202 2043 CDNEXT, GB 34984 2500 368 587 TELLCOM-AS, TR 8452 1709 1852 14 TE-AS TE-AS, EG 203020 1663 252 831 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12767 3266 638 UNINET, MX 10620 3429 450 1105 Telmex Colombia S.A., CO 13999 2419 506 350 Mega Cable, S.A. de C.V., MX 11830 1937 369 65 Instituto Costarricense de Electricidad y 11664 1450 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1375 2431 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1225 379 23 INTEGRATEL PERU S.A.A., PE 22884 1077 71 365 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1073 2392 100 TIM SA, 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 2027 649 36 RAYA-AS, EG 36992 1860 1533 334 ETISALAT-MISR, EG 20011 1341 206 353 NTT-DATA-Inc, ZA 24863 1271 389 16 LINKdotNET-AS, EG 36935 1237 520 41 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1070 70 18 ORANGE-COTE-IVOIRE, CI 328608 573 54 158 Africa-on-Cloud-AS, ZA 36914 564 82 3 KENET-AS, KE 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 14935 41296 5703 AMAZON-02 - Amazon.com, Inc., US 9808 13868 8761 121 CHINAMOBILE-CN China Mobile Communication 8151 12767 3266 638 UNINET, MX 12479 7183 1711 149 UNI2-AS, ES 7545 5883 826 482 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS, SA 9498 4937 551 321 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 3116 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1055 CABLEONE - CABLE ONE, INC., US 7552 4053 1332 28 VIETEL-AS-AP Viettel Group, VN 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 13868 13747 CHINAMOBILE-CN China Mobile Communications Grou 8151 12767 12129 UNINET, MX 12479 7183 7034 UNI2-AS, ES 7545 5883 5401 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS, SA 9498 4937 4616 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4053 4025 VIETEL-AS-AP Viettel Group, VN 20940 3918 3808 AKAMAI-ASN1, NL 7155 3867 3777 VIASAT-SP-BACKBONE - ViaSat,Inc., US 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 395195 UNALLOCATED 8.38.115.0/24 33132 CROWNCASTLE-AS33132 - C 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 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 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 37100 SEACOM-AS, MU 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US 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 /11:95 /12:298 /13:584 /14:1192 /15:2101 /16:13619 /17:8309 /18:13353 /19:25428 /20:45547 /21:52381 /22:113608 /23:107662 /24:659209 /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 6974 12767 UNINET, MX 12479 6120 7183 UNI2-AS, ES 39891 3660 4975 ALJAWWALSTC-AS, SA 11492 3505 4638 CABLEONE - CABLE ONE, INC., US 6327 3498 3716 SHAW - Shaw Communications, CA 22773 3058 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2822 3867 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2691 14935 AMAZON-02 - Amazon.com, Inc., US 30036 2265 2612 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3429 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/RENU/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2024 2:2051 3:1003 4:5 5:5087 6:200 7:6 8:1488 9:43 11:172 12:1171 13:708 14:2706 15:464 16:208 17:441 18:921 20:599 21:4 22:188 23:8373 24:2782 25:2 27:2742 28:1 29:19 31:3545 32:37 34:91 35:284 36:4744 37:4441 38:9636 39:1294 40:439 41:4775 42:1291 43:3113 44:448 45:19857 46:4909 47:413 48:127 49:2241 50:2011 51:687 52:1317 54:282 55:1020 56:11 57:330 58:2327 59:1373 60:1175 61:3153 62:3154 63:1689 64:6390 65:2146 66:6128 67:3267 68:1505 69:4220 70:1062 71:607 72:3182 74:3057 75:1501 76:597 77:2962 78:2036 79:1794 80:2361 81:2279 82:4185 83:1458 84:2154 85:3845 86:1092 87:2643 88:1340 89:4778 90:812 91:8478 92:2803 93:3042 94:4411 95:4751 96:1453 97:311 98:946 99:832 100:70 101:1361 102:4991 103:32380 104:5379 105:1225 106:899 107:2941 108:1270 109:4266 110:2281 111:4128 112:3176 113:1875 114:2282 115:2237 116:2135 117:3491 118:2701 119:2043 120:2708 121:1523 122:2990 123:2284 124:1655 125:3004 126:126 128:1572 129:1014 130:1646 131:2476 132:884 133:486 134:1692 135:610 136:1541 137:1361 138:3396 139:1614 140:1774 141:1744 142:2562 143:2102 144:1765 145:638 146:2184 147:2255 148:2810 149:3121 150:1363 151:2915 152:2336 153:1558 154:9708 155:2301 156:5139 157:2327 158:1584 159:2875 160:3885 161:1966 162:4069 163:2539 164:2440 165:2670 166:1276 167:2308 168:4052 169:882 170:5611 171:1139 172:4807 173:3467 174:889 175:1349 176:3944 177:4845 178:4420 179:2334 180:3040 181:4578 182:4015 183:2800 184:1998 185:21971 186:6118 187:5016 188:4591 189:4542 190:9820 191:1686 192:11515 193:9638 194:7904 195:5840 196:3709 197:4010 198:6142 199:6088 200:8130 201:6393 202:10485 203:10516 204:4757 205:3687 206:4418 207:3823 208:4352 209:5408 210:4621 211:2685 212:5108 213:4101 214:1038 215:47 216:7294 217:3626 218:1705 219:412 220:2184 221:1316 222:933 223:3433 End of report