IPv4 R&E Routing Table Report 23:05 GMT Wed 19 Feb, 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: 971045 Prefixes after maximum aggregation (per Origin AS): 371942 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 474927 Number of IPv4 prefixes with a valid ROA: 529655 Number of IPv4 prefixes with an invalid ROA: 1042 Number of IPv4 prefixes with no ROA: 440348 Total ASes present in the Internet Routing Table: 76472 Prefixes per ASN: 12.70 Origin-only ASes present in the Internet Routing Table: 65608 Origin ASes announcing only one prefix: 26871 Transit ASes present in the Internet Routing Table: 10864 Transit-only ASes present in the Internet Routing Table: 525 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 992 Number of instances of unregistered ASNs: 997 Number of 32-bit ASNs allocated by the RIRs: 46145 Number of 32-bit ASNs visible in the Routing Table: 37783 Prefixes from 32-bit ASNs in the Routing Table: 198957 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 443 Number of addresses announced to Internet: 3111857920 Equivalent to 185 /8s, 123 /16s and 47 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 318876 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 254420 Total APNIC prefixes after maximum aggregation: 76006 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 246758 Unique aggregates announced from the APNIC address blocks: 102583 APNIC Region origin ASes present in the Internet Routing Table: 14479 APNIC Prefixes per ASN: 17.04 APNIC Region origin ASes announcing only one prefix: 4423 APNIC Region transit ASes present in the Internet Routing Table: 1950 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10000 Number of APNIC addresses announced to Internet: 753229568 Equivalent to 44 /8s, 229 /16s and 95 /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: 285622 Total ARIN prefixes after maximum aggregation: 127195 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 287711 Unique aggregates announced from the ARIN address blocks: 135862 ARIN Region origin ASes present in the Internet Routing Table: 19178 ARIN Prefixes per ASN: 15.00 ARIN Region origin ASes announcing only one prefix: 7024 ARIN Region transit ASes present in the Internet Routing Table: 1922 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: 5141 Number of ARIN addresses announced to Internet: 1344133632 Equivalent to 80 /8s, 29 /16s and 218 /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: 271520 Total RIPE prefixes after maximum aggregation: 132051 RIPE Deaggregation factor: 2.06 Prefixes being announced from the RIPE address blocks: 268869 Unique aggregates announced from the RIPE address blocks: 172465 RIPE Region origin ASes present in the Internet Routing Table: 28823 RIPE Prefixes per ASN: 9.33 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3963 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12246 Number of RIPE addresses announced to Internet: 732140288 Equivalent to 43 /8s, 163 /16s and 147 /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: 123387 Total LACNIC prefixes after maximum aggregation: 29239 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120668 Unique aggregates announced from the LACNIC address blocks: 48886 LACNIC Region origin ASes present in the Internet Routing Table: 11194 LACNIC Prefixes per ASN: 10.78 LACNIC Region origin ASes announcing only one prefix: 2671 LACNIC Region transit ASes present in the Internet Routing Table: 2478 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: 9129 Number of LACNIC addresses announced to Internet: 177886208 Equivalent to 10 /8s, 154 /16s and 84 /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: 35104 Total AfriNIC prefixes after maximum aggregation: 6816 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 46596 Unique aggregates announced from the AfriNIC address blocks: 14763 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 24.37 AfriNIC Region origin ASes announcing only one prefix: 696 AfriNIC Region transit ASes present in the Internet Routing Table: 371 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: 1267 Number of AfriNIC addresses announced to Internet: 104217344 Equivalent to 6 /8s, 54 /16s and 59 /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 10333 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6211 843 663 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4269 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4239 530 274 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 1331 25 VIETEL-AS-AP Viettel Group, VN 7713 3685 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3256 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2846 855 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2164 434 195 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 12755 39185 3764 AMAZON-02, US 11492 4701 312 568 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 174 3675 8764 939 COGENT-174, US 6327 3623 1320 81 SHAW, CA 22773 3376 3035 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3260 54879 2507 DNIC-AS-00749, US 396982 2930 3660 449 GOOGLE-CLOUD-PLATFORM, US 16625 2925 1250 2160 AKAMAI-AS, US 30036 2591 359 281 MEDIACOM-ENTERPRISE-BUSINESS, 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 7767 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3886 3395 127 AKAMAI-ASN1, NL 9009 3723 319 1912 M247, RO 12389 2991 2303 892 ROSTELECOM-AS, RU 34984 2368 361 580 TELLCOM-AS, TR 212238 2020 146 1497 CDNEXT, GB 8452 1619 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1495 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 11760 3229 596 UNINET, MX 10620 3544 492 951 Telmex Colombia S.A., CO 13999 2494 539 366 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1347 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 777 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1155 371 23 Telefonica del Peru S.A.A., PE 6503 1130 374 163 Axtel, S.A.B. de C.V., MX 22884 1077 98 372 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1011 278 33 Techtel LMDS Comunicaciones Interactivas 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 1683 599 30 RAYA-AS, EG 24863 1646 389 17 LINKdotNET-AS, EG 29571 1555 98 101 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 997 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 843 1083 15 MOBINIL, EG 6713 558 1861 35 IAM-AS, MA 36914 557 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 12755 39185 3764 AMAZON-02, US 8151 11760 3229 596 UNINET, MX 9808 10333 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7767 1714 145 UNI2-AS, ES 7545 6211 843 663 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4701 312 568 CABLEONE, US 18403 4269 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4239 530 274 BBIL-AP BHARTI Airtel Ltd., IN 7155 4173 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 11760 11164 UNINET, MX 9808 10333 10245 CHINAMOBILE-CN China Mobile Communications Grou 12479 7767 7622 UNI2-AS, ES 7545 6211 5548 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4269 4244 FPT-AS-AP FPT Telecom Company, VN 11492 4701 4133 CABLEONE, US 7155 4173 4090 VIASAT-SP-BACKBONE, US 9498 4239 3965 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3893 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 400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, 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 54338 UNALLOCATED 8.33.241.0/24 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 23.140.16.0/24 Origin: 63371 RESERVED, ZZ 23.140.16.0/24 Transit: 3356 LEVEL3, US 23.140.48.0/24 Origin: 63371 RESERVED, ZZ 23.140.48.0/24 Transit: 7018 ATT-INTERNET4, 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 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 /10:42 /11:92 /12:307 /13:584 /14:1215 /15:2140 /16:13896 /17:8226 /18:13614 /19:24420 /20:43731 /21:51780 /22:111963 /23:100718 /24:598285 /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 6721 7767 UNI2-AS, ES 8151 5964 11760 UNINET, MX 11492 3556 4701 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3120 4173 VIASAT-SP-BACKBONE, US 22773 2511 3376 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2270 12755 AMAZON-02, US 30036 2251 2591 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2184 3544 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) ---------------------------------------------- 1:2304 2:1505 3:570 4:10 5:4514 6:165 7:6 8:1555 9:1 11:172 12:1381 13:345 14:2509 15:348 16:273 17:356 18:916 20:450 21:4 22:188 23:7258 24:2726 25:2 27:2702 29:19 31:3140 32:35 34:81 35:200 36:2405 37:4583 38:8603 39:896 40:153 41:4187 42:1935 43:2523 44:353 45:18241 46:4966 47:291 49:1974 50:1889 51:590 52:1570 54:300 55:1083 56:9 57:240 58:2224 59:1192 60:1167 61:2838 62:2938 63:1825 64:5506 65:2191 66:4607 67:3031 68:1119 69:3973 70:1106 71:607 72:2863 74:2780 75:1644 76:611 77:2657 78:1853 79:1716 80:2205 81:2028 82:2581 83:1408 84:1790 85:3355 86:1018 87:2155 88:1276 89:4309 90:761 91:8321 92:2806 93:2860 94:3910 95:4199 96:1356 97:318 98:979 99:739 100:71 101:1376 102:3704 103:32317 104:4786 105:744 106:995 107:2589 108:1199 109:4090 110:2227 111:3326 112:2048 113:1787 114:1943 115:2124 116:2043 117:2742 118:2877 119:1945 120:1871 121:1356 122:2748 123:2162 124:1602 125:2885 126:94 128:1554 129:944 130:1263 131:1843 132:790 133:450 134:1522 135:325 136:1332 137:1106 138:2868 139:1602 140:1558 141:1477 142:1826 143:1603 144:1065 145:468 146:2120 147:2062 148:2609 149:2849 150:1222 151:1678 152:2101 153:504 154:7193 155:1606 156:2770 157:1890 158:1251 159:2426 160:3566 161:1892 162:3681 163:1813 164:1693 165:2179 166:1359 167:1881 168:4037 169:790 170:5062 171:1002 172:4313 173:3242 174:915 175:1278 176:3607 177:4744 178:3749 179:2227 180:2543 181:3998 182:3365 183:2037 184:2294 185:21446 186:5081 187:4294 188:4220 189:4178 190:9611 191:1528 192:11145 193:9368 194:7739 195:5477 196:3281 197:3776 198:6051 199:8327 200:8028 201:6302 202:10324 203:10521 204:4532 205:3631 206:4563 207:3473 208:4183 209:5142 210:4508 211:2522 212:4481 213:3731 214:1056 215:42 216:6577 217:3101 218:1336 219:376 220:2114 221:1049 222:717 223:2311 End of report