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 Apr, 2025 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: 995876 Prefixes after maximum aggregation (per Origin AS): 375127 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 476412 Number of IPv4 prefixes with a valid ROA: 549873 Number of IPv4 prefixes with an invalid ROA: 438 Number of IPv4 prefixes with no ROA: 445564 Total ASes present in the Internet Routing Table: 76731 Prefixes per ASN: 12.98 Origin-only ASes present in the Internet Routing Table: 65828 Origin ASes announcing only one prefix: 26539 Transit ASes present in the Internet Routing Table: 10903 Transit-only ASes present in the Internet Routing Table: 542 Paths with bogon ASNs present in the IPv4 Routing Table: 72 Average AS path length visible in the Internet Routing Table: 5.0 Max AS path length visible: 56 Max AS path prepend of ASN (135823) 50 Prefixes from unregistered ASNs in the Routing Table: 1082 Number of instances of unregistered ASNs: 1085 Number of 32-bit ASNs allocated by the RIRs: 46163 Number of 32-bit ASNs visible in the Routing Table: 38078 Prefixes from 32-bit ASNs in the Routing Table: 206712 Number of bogon 32-bit ASNs visible in the Routing Table: 24 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 489 Number of addresses announced to Internet: 3107531008 Equivalent to 185 /8s, 57 /16s and 41 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 329439 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 257425 Total APNIC prefixes after maximum aggregation: 76278 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 249065 Unique aggregates announced from the APNIC address blocks: 102647 APNIC Region origin ASes present in the Internet Routing Table: 14537 APNIC Prefixes per ASN: 17.13 APNIC Region origin ASes announcing only one prefix: 4439 APNIC Region transit ASes present in the Internet Routing Table: 1934 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 55 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10065 Number of APNIC addresses announced to Internet: 748626176 Equivalent to 44 /8s, 159 /16s and 33 /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: 291135 Total ARIN prefixes after maximum aggregation: 128757 ARIN Deaggregation factor: 2.26 Prefixes being announced from the ARIN address blocks: 292526 Unique aggregates announced from the ARIN address blocks: 137155 ARIN Region origin ASes present in the Internet Routing Table: 19211 ARIN Prefixes per ASN: 15.23 ARIN Region origin ASes announcing only one prefix: 7037 ARIN Region transit ASes present in the Internet Routing Table: 1947 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5173 Number of ARIN addresses announced to Internet: 1349828096 Equivalent to 80 /8s, 116 /16s and 190 /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, 393216-402332 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: 276587 Total RIPE prefixes after maximum aggregation: 133283 RIPE Deaggregation factor: 2.08 Prefixes being announced from the RIPE address blocks: 274134 Unique aggregates announced from the RIPE address blocks: 173760 RIPE Region origin ASes present in the Internet Routing Table: 28925 RIPE Prefixes per ASN: 9.48 RIPE Region origin ASes announcing only one prefix: 12044 RIPE Region transit ASes present in the Internet Routing Table: 3962 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12384 Number of RIPE addresses announced to Internet: 731941120 Equivalent to 43 /8s, 160 /16s and 137 /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: 132086 Total LACNIC prefixes after maximum aggregation: 29313 LACNIC Deaggregation factor: 4.51 Prefixes being announced from the LACNIC address blocks: 128650 Unique aggregates announced from the LACNIC address blocks: 48809 LACNIC Region origin ASes present in the Internet Routing Table: 11224 LACNIC Prefixes per ASN: 11.46 LACNIC Region origin ASes announcing only one prefix: 2365 LACNIC Region transit ASes present in the Internet Routing Table: 2484 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 56 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9177 Number of LACNIC addresses announced to Internet: 171686656 Equivalent to 10 /8s, 59 /16s and 187 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 37561 Total AfriNIC prefixes after maximum aggregation: 6828 AfriNIC Deaggregation factor: 5.50 Prefixes being announced from the AfriNIC address blocks: 51012 Unique aggregates announced from the AfriNIC address blocks: 13620 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 26.72 AfriNIC Region origin ASes announcing only one prefix: 654 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 39 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1279 Number of AfriNIC addresses announced to Internet: 105206016 Equivalent to 6 /8s, 69 /16s and 81 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & 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 10307 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6212 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4218 530 274 BBIL-AP BHARTI Airtel Ltd., IN 18403 4207 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3676 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3267 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2847 849 536 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2170 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4766 2156 11520 621 KIXS-AS-KR Korea Telecom, KR 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 12998 39641 3948 AMAZON-02, US 174 5472 8766 957 COGENT-174, US 11492 4686 311 585 CABLEONE, US 7155 3828 286 85 VIASAT-SP-BACKBONE, US 6327 3619 1320 81 SHAW, CA 22773 3400 3034 184 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 3082 1295 2248 AKAMAI-AS, US 396982 2950 3649 467 GOOGLE-CLOUD-PLATFORM, US 36352 2618 216 797 AS-COLOCROSSING, 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 7713 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3987 3395 128 AKAMAI-ASN1, NL 9009 3772 326 1962 M247, RO 12389 3073 2303 896 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2083 148 1534 CDNEXT, GB 8452 1617 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1492 98 750 CLOUVIDER Clouvider - Global ASN, GB 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 11947 3244 585 UNINET, MX 10620 3526 487 971 Telmex Colombia S.A., CO 13999 2512 539 364 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1356 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 11664 1175 278 33 Techtel LMDS Comunicaciones Interactivas 28202 1132 52 9 Rede Brasileira de Comunicacao SA, BR 22884 1046 66 375 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1703 599 30 RAYA-AS, EG 24863 1631 389 16 LINKdotNET-AS, EG 29571 1571 102 22 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 20011 1295 204 345 INTERNET-SOLUTIONS, ZA 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 37069 915 1083 15 MOBINIL, EG 37457 587 316 32 Telkom-Internet, ZA 3741 562 661 321 IS, ZA 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 12998 39641 3948 AMAZON-02, US 8151 11947 3244 585 UNINET, MX 9808 10307 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7713 1714 145 UNI2-AS, ES 7545 6212 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5472 8766 957 COGENT-174, US 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4686 311 585 CABLEONE, US 9498 4218 530 274 BBIL-AP BHARTI Airtel Ltd., IN 18403 4207 347 25 FPT-AS-AP FPT Telecom Company, 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 8151 11947 11362 UNINET, MX 9808 10307 10219 CHINAMOBILE-CN China Mobile Communications Grou 12479 7713 7568 UNI2-AS, ES 7545 6212 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 174 5472 4515 COGENT-174, US 18403 4207 4182 FPT-AS-AP FPT Telecom Company, VN 11492 4686 4101 CABLEONE, US 9498 4218 3944 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 VIETEL-AS-AP Viettel Group, VN 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 212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ 46559 UNALLOCATED 8.3.52.0/23 3257 GTT-BACKBONE GTT, US 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 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, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 6939 HURRICANE, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /9:16 /10:41 /11:93 /12:302 /13:582 /14:1232 /15:2183 /16:14001 /17:8357 /18:13921 /19:24813 /20:44303 /21:52522 /22:113376 /23:105488 /24:614630 /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 12479 6638 7713 UNI2-AS, ES 8151 6126 11947 UNINET, MX 11492 3531 4686 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3416 3619 SHAW, CA 7155 2787 3828 VIASAT-SP-BACKBONE, US 22773 2536 3400 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2338 12998 AMAZON-02, US 30036 2205 2545 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2188 3526 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) ---------------------------------------------- 1:2342 2:1539 3:611 4:10 5:4892 6:162 7:6 8:1549 9:1 11:172 12:1373 13:351 14:2509 15:349 16:279 17:361 18:918 20:478 21:4 22:188 23:7370 24:2882 25:2 27:2733 29:19 31:3270 32:45 34:84 35:203 36:2403 37:4707 38:10141 39:899 40:154 41:4415 42:1900 43:2569 44:363 45:19223 46:4988 47:289 49:1967 50:1902 51:590 52:1552 54:301 55:877 56:11 57:261 58:2194 59:1280 60:1172 61:3001 62:2990 63:1850 64:5525 65:2195 66:4709 67:3096 68:1105 69:4001 70:1072 71:620 72:2926 74:2820 75:1611 76:612 77:2817 78:1885 79:1734 80:2214 81:2047 82:3116 83:1428 84:1853 85:3408 86:1042 87:2415 88:1299 89:4332 90:776 91:8387 92:2805 93:2884 94:4069 95:4311 96:1434 97:312 98:998 99:641 100:71 101:1399 102:4106 103:32299 104:4810 105:1225 106:987 107:2609 108:1207 109:4141 110:2225 111:3313 112:2041 113:1821 114:1969 115:2204 116:2069 117:2737 118:2808 119:1961 120:1875 121:1363 122:2773 123:2405 124:1586 125:2857 126:88 128:1596 129:1026 130:1299 131:1947 132:785 133:451 134:1531 135:377 136:1306 137:1114 138:3049 139:1609 140:1574 141:1488 142:1862 143:1667 144:1046 145:520 146:2168 147:2103 148:2645 149:2965 150:1249 151:1738 152:2118 153:573 154:8157 155:1651 156:3219 157:1897 158:1271 159:2428 160:3634 161:1892 162:3722 163:1996 164:1723 165:2214 166:1438 167:1896 168:4215 169:797 170:5304 171:1002 172:4482 173:3249 174:909 175:1289 176:3784 177:5428 178:3855 179:2448 180:2620 181:4194 182:3370 183:2010 184:2149 185:21700 186:5500 187:4767 188:4218 189:4389 190:9828 191:1913 192:11189 193:9447 194:7856 195:5619 196:3656 197:3800 198:6105 199:8431 200:8516 201:6415 202:10452 203:10665 204:4536 205:3662 206:4603 207:3454 208:4222 209:5178 210:4583 211:2530 212:4548 213:3823 214:1049 215:48 216:6650 217:3163 218:1347 219:385 220:2084 221:1073 222:708 223:2320 End of report