IPv4 R&E Routing Table Report 23:05 GMT Mon 24 Mar, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 975092 Prefixes after maximum aggregation (per Origin AS): 374042 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475819 Number of IPv4 prefixes with a valid ROA: 535983 Number of IPv4 prefixes with an invalid ROA: 1041 Number of IPv4 prefixes with no ROA: 438068 Total ASes present in the Internet Routing Table: 76594 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65713 Origin ASes announcing only one prefix: 26870 Transit ASes present in the Internet Routing Table: 10881 Transit-only ASes present in the Internet Routing Table: 535 Paths with bogon ASNs present in the IPv4 Routing Table: 14 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1002 Number of instances of unregistered ASNs: 1006 Number of 32-bit ASNs allocated by the RIRs: 46129 Number of 32-bit ASNs visible in the Routing Table: 37982 Prefixes from 32-bit ASNs in the Routing Table: 199625 Number of bogon 32-bit ASNs visible in the Routing Table: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 483 Number of addresses announced to Internet: 3108121088 Equivalent to 185 /8s, 66 /16s and 42 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 319975 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255151 Total APNIC prefixes after maximum aggregation: 76283 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246904 Unique aggregates announced from the APNIC address blocks: 102607 APNIC Region origin ASes present in the Internet Routing Table: 14525 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4435 APNIC Region transit ASes present in the Internet Routing Table: 1958 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 49 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10053 Number of APNIC addresses announced to Internet: 748967424 Equivalent to 44 /8s, 164 /16s and 86 /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: 288508 Total ARIN prefixes after maximum aggregation: 128375 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 289092 Unique aggregates announced from the ARIN address blocks: 136799 ARIN Region origin ASes present in the Internet Routing Table: 19185 ARIN Prefixes per ASN: 15.07 ARIN Region origin ASes announcing only one prefix: 7024 ARIN Region transit ASes present in the Internet Routing Table: 1905 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5156 Number of ARIN addresses announced to Internet: 1350191360 Equivalent to 80 /8s, 122 /16s and 73 /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: 271786 Total RIPE prefixes after maximum aggregation: 132729 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270179 Unique aggregates announced from the RIPE address blocks: 173539 RIPE Region origin ASes present in the Internet Routing Table: 28859 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12054 RIPE Region transit ASes present in the Internet Routing Table: 3973 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12332 Number of RIPE addresses announced to Internet: 732350208 Equivalent to 43 /8s, 166 /16s and 199 /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: 123637 Total LACNIC prefixes after maximum aggregation: 29266 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120303 Unique aggregates announced from the LACNIC address blocks: 48877 LACNIC Region origin ASes present in the Internet Routing Table: 11214 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2664 LACNIC Region transit ASes present in the Internet Routing Table: 2481 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9167 Number of LACNIC addresses announced to Internet: 171550976 Equivalent to 10 /8s, 57 /16s and 169 /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: 35008 Total AfriNIC prefixes after maximum aggregation: 6764 AfriNIC Deaggregation factor: 5.18 Prefixes being announced from the AfriNIC address blocks: 48131 Unique aggregates announced from the AfriNIC address blocks: 13589 AfriNIC Region origin ASes present in the Internet Routing Table: 1909 AfriNIC Prefixes per ASN: 25.21 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 374 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274 Number of AfriNIC addresses announced to Internet: 104820224 Equivalent to 6 /8s, 63 /16s and 110 /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 10327 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6212 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4270 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4236 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3689 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2843 847 540 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2172 434 197 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12922 39640 3968 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4174 286 83 VIASAT-SP-BACKBONE, US 174 3626 8765 951 COGENT-174, US 6327 3623 1320 81 SHAW, CA 22773 3380 3036 182 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2967 1247 2188 AKAMAI-AS, US 396982 2945 3661 458 GOOGLE-CLOUD-PLATFORM, US 36352 2569 213 804 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7753 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3893 3395 126 AKAMAI-ASN1, NL 9009 3757 324 1946 M247, RO 12389 3000 2303 889 ROSTELECOM-AS, RU 34984 2366 360 583 TELLCOM-AS, TR 212238 2055 147 1515 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1521 1852 14 TE-AS TE-AS, EG 62240 1489 98 747 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11874 3243 579 UNINET, MX 10620 3523 486 970 Telmex Colombia S.A., CO 13999 2509 539 368 Mega Cable, S.A. de C.V., MX 11830 1993 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1166 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1070 359 174 Axtel, S.A.B. de C.V., MX 22884 1049 67 375 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M Complete listing at https://bgp.nsrc.org/REN/Singapore/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 1629 389 16 LINKdotNET-AS, EG 29571 1566 102 23 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 910 1084 18 MOBINIL, EG 6713 561 1861 35 IAM-AS, MA 36914 537 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12922 39640 3968 AMAZON-02, US 8151 11874 3243 579 UNINET, MX 9808 10327 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7753 1714 145 UNI2-AS, ES 7545 6212 843 654 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 9498 4270 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4236 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4174 286 83 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11874 11295 UNINET, MX 9808 10327 10239 CHINAMOBILE-CN China Mobile Communications Grou 12479 7753 7608 UNI2-AS, ES 7545 6212 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4236 4211 FPT-AS-AP FPT Telecom Company, VN 7155 4174 4091 VIASAT-SP-BACKBONE, US 11492 4675 4090 CABLEONE, US 9498 4270 3994 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 3886 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 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 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS 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: 3491 CONSOLE-CONNECT-ASN, 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/Singapore/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 /12:303 /13:581 /14:1214 /15:2143 /16:13928 /17:8242 /18:13653 /19:24498 /20:43693 /21:51581 /22:111712 /23:101037 /24:602341 /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 6686 7753 UNI2-AS, ES 8151 6076 11874 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3121 4174 VIASAT-SP-BACKBONE, US 22773 2516 3380 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2329 12922 AMAZON-02, US 30036 2216 2556 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2185 3523 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2335 2:1507 3:599 4:10 5:4564 6:163 7:6 8:1548 9:1 11:172 12:1372 13:347 14:2510 15:352 16:279 17:357 18:914 20:463 21:4 22:188 23:7290 24:3017 25:2 27:2731 29:19 31:3209 32:37 34:82 35:205 36:2396 37:4709 38:8864 39:899 40:154 41:4176 42:1914 43:2546 44:357 45:18419 46:4935 47:288 49:1985 50:1894 51:587 52:1554 54:300 55:1077 56:11 57:248 58:2193 59:1269 60:1169 61:2817 62:2904 63:1830 64:5488 65:2179 66:4587 67:3014 68:1116 69:3965 70:1109 71:613 72:2850 74:2806 75:1658 76:612 77:2684 78:1853 79:1583 80:2193 81:1998 82:2875 83:1411 84:1811 85:3357 86:1046 87:2150 88:1279 89:4328 90:783 91:8319 92:2787 93:2888 94:4035 95:4252 96:1423 97:315 98:994 99:738 100:71 101:1303 102:3660 103:32240 104:4811 105:733 106:998 107:2594 108:1200 109:3958 110:2229 111:3326 112:2039 113:1791 114:1948 115:2119 116:2033 117:2742 118:2859 119:1938 120:1874 121:1358 122:2740 123:2166 124:1607 125:2868 126:86 128:1543 129:955 130:1264 131:1887 132:775 133:451 134:1529 135:329 136:1277 137:1108 138:2880 139:1622 140:1565 141:1479 142:1819 143:1643 144:1055 145:480 146:2150 147:2098 148:2620 149:2892 150:1248 151:2038 152:2095 153:504 154:7902 155:1614 156:3291 157:1906 158:1269 159:2425 160:3534 161:1939 162:3703 163:1937 164:1692 165:2199 166:1414 167:1883 168:4049 169:787 170:5130 171:1001 172:4441 173:3230 174:910 175:1263 176:3669 177:4744 178:3813 179:2331 180:2571 181:4039 182:3370 183:2052 184:2292 185:21471 186:5103 187:4405 188:4218 189:4167 190:9625 191:1548 192:11142 193:9417 194:7765 195:5519 196:3242 197:3753 198:6061 199:8401 200:8053 201:6275 202:10333 203:10521 204:4520 205:3640 206:4578 207:3435 208:4183 209:5151 210:4506 211:2525 212:4500 213:3741 214:1055 215:48 216:6584 217:3086 218:1326 219:379 220:2086 221:1068 222:719 223:2318 End of report