IPv4 R&E Routing Table Report 23:05 GMT Mon 10 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: 973572 Prefixes after maximum aggregation (per Origin AS): 373231 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476092 Number of IPv4 prefixes with a valid ROA: 534123 Number of IPv4 prefixes with an invalid ROA: 1032 Number of IPv4 prefixes with no ROA: 438417 Total ASes present in the Internet Routing Table: 76488 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65647 Origin ASes announcing only one prefix: 26869 Transit ASes present in the Internet Routing Table: 10841 Transit-only ASes present in the Internet Routing Table: 529 Paths with bogon ASNs present in the IPv4 Routing Table: 16 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: 964 Number of instances of unregistered ASNs: 983 Number of 32-bit ASNs allocated by the RIRs: 46184 Number of 32-bit ASNs visible in the Routing Table: 37860 Prefixes from 32-bit ASNs in the Routing Table: 198846 Number of bogon 32-bit ASNs visible in the Routing Table: 50 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 453 Number of addresses announced to Internet: 3110038272 Equivalent to 185 /8s, 95 /16s and 107 /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: 319723 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255160 Total APNIC prefixes after maximum aggregation: 76104 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 246973 Unique aggregates announced from the APNIC address blocks: 102594 APNIC Region origin ASes present in the Internet Routing Table: 14478 APNIC Prefixes per ASN: 17.06 APNIC Region origin ASes announcing only one prefix: 4405 APNIC Region transit ASes present in the Internet Routing Table: 1954 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10008 Number of APNIC addresses announced to Internet: 749381120 Equivalent to 44 /8s, 170 /16s and 166 /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: 287459 Total ARIN prefixes after maximum aggregation: 128144 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288198 Unique aggregates announced from the ARIN address blocks: 136489 ARIN Region origin ASes present in the Internet Routing Table: 19183 ARIN Prefixes per ASN: 15.02 ARIN Region origin ASes announcing only one prefix: 7021 ARIN Region transit ASes present in the Internet Routing Table: 1911 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5154 Number of ARIN addresses announced to Internet: 1350958592 Equivalent to 80 /8s, 133 /16s and 254 /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: 271676 Total RIPE prefixes after maximum aggregation: 132333 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 269799 Unique aggregates announced from the RIPE address blocks: 172849 RIPE Region origin ASes present in the Internet Routing Table: 28839 RIPE Prefixes per ASN: 9.36 RIPE Region origin ASes announcing only one prefix: 12077 RIPE Region transit ASes present in the Internet Routing Table: 3960 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: 12285 Number of RIPE addresses announced to Internet: 732140544 Equivalent to 43 /8s, 163 /16s and 148 /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: 123158 Total LACNIC prefixes after maximum aggregation: 29207 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120016 Unique aggregates announced from the LACNIC address blocks: 48839 LACNIC Region origin ASes present in the Internet Routing Table: 11199 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2470 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: 9146 Number of LACNIC addresses announced to Internet: 172734720 Equivalent to 10 /8s, 75 /16s and 185 /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: 35155 Total AfriNIC prefixes after maximum aggregation: 6834 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 48133 Unique aggregates announced from the AfriNIC address blocks: 14926 AfriNIC Region origin ASes present in the Internet Routing Table: 1903 AfriNIC Prefixes per ASN: 25.29 AfriNIC Region origin ASes announcing only one prefix: 694 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: 1267 Number of AfriNIC addresses announced to Internet: 104592384 Equivalent to 6 /8s, 59 /16s and 244 /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 10324 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6212 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4402 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4253 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3686 1044 68 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3272 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2843 849 539 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2206 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2170 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 12912 39639 3941 AMAZON-02, US 11492 4673 310 589 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 174 3699 8768 962 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3381 3035 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 396982 2944 3660 457 GOOGLE-CLOUD-PLATFORM, US 16625 2943 1246 2172 AKAMAI-AS, US 30036 2545 350 420 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 7768 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3897 3395 126 AKAMAI-ASN1, NL 9009 3760 322 1939 M247, RO 12389 2979 2303 889 ROSTELECOM-AS, RU 34984 2369 361 581 TELLCOM-AS, TR 212238 2030 146 1500 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1495 1852 14 TE-AS TE-AS, EG 62240 1487 98 746 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 11807 3240 589 UNINET, MX 10620 3523 487 970 Telmex Colombia S.A., CO 13999 2505 539 374 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1328 781 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1202 371 22 Telefonica del Peru S.A.A., PE 11664 1170 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1106 374 163 Axtel, S.A.B. de C.V., MX 22884 1049 67 373 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 1683 599 30 RAYA-AS, EG 24863 1618 389 16 LINKdotNET-AS, EG 29571 1582 100 104 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1022 523 45 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 855 1083 15 MOBINIL, EG 6713 558 1861 35 IAM-AS, MA 36914 542 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 12912 39639 3941 AMAZON-02, US 8151 11807 3240 589 UNINET, MX 9808 10324 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7768 1714 145 UNI2-AS, ES 7545 6212 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4673 310 589 CABLEONE, US 18403 4402 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4253 530 276 BBIL-AP BHARTI Airtel Ltd., IN 7155 4175 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 11807 11218 UNINET, MX 9808 10324 10236 CHINAMOBILE-CN China Mobile Communications Grou 12479 7768 7623 UNI2-AS, ES 7545 6212 5555 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4402 4377 FPT-AS-AP FPT Telecom Company, VN 7155 4175 4092 VIASAT-SP-BACKBONE, US 11492 4673 4084 CABLEONE, US 9498 4253 3977 BBIL-AP BHARTI Airtel Ltd., IN 7552 3922 3896 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 /10:42 /11:92 /12:304 /13:583 /14:1213 /15:2142 /16:13921 /17:8238 /18:13625 /19:24447 /20:43663 /21:51633 /22:111556 /23:100844 /24:601237 /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 6709 7768 UNI2-AS, ES 8151 6004 11807 UNINET, MX 11492 3527 4673 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 3121 4175 VIASAT-SP-BACKBONE, US 22773 2518 3381 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2339 12912 AMAZON-02, US 30036 2205 2545 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2184 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) ---------------------------------------------- 1:2338 2:1502 3:586 4:10 5:4556 6:166 7:6 8:1547 9:1 11:172 12:1376 13:339 14:2517 15:350 16:279 17:361 18:922 20:461 21:4 22:188 23:7278 24:3018 25:2 27:2698 29:19 31:3191 32:35 34:82 35:203 36:2407 37:4605 38:8916 39:897 40:153 41:4227 42:2000 43:2528 44:357 45:18314 46:5013 47:288 49:1990 50:1882 51:590 52:1559 54:302 55:809 56:9 57:242 58:2217 59:1229 60:1166 61:2820 62:2909 63:1823 64:5493 65:2169 66:4608 67:3017 68:1118 69:3953 70:1110 71:609 72:2859 74:2773 75:1650 76:611 77:2684 78:1861 79:1727 80:2190 81:2010 82:2746 83:1394 84:1809 85:3350 86:1031 87:2149 88:1277 89:4310 90:780 91:8311 92:2794 93:2841 94:3900 95:4268 96:1412 97:318 98:971 99:739 100:71 101:1391 102:3657 103:32260 104:4796 105:739 106:999 107:2585 108:1202 109:4107 110:2228 111:3321 112:2036 113:1800 114:1943 115:2121 116:2037 117:2755 118:2880 119:1944 120:1877 121:1358 122:2734 123:2162 124:1608 125:2884 126:87 128:1542 129:955 130:1265 131:1844 132:778 133:451 134:1528 135:330 136:1275 137:1106 138:2885 139:1604 140:1550 141:1468 142:1823 143:1631 144:1057 145:476 146:2139 147:2075 148:2597 149:2853 150:1242 151:1946 152:2100 153:504 154:7885 155:1618 156:3293 157:1902 158:1268 159:2429 160:3559 161:1925 162:3669 163:1876 164:1703 165:2188 166:1381 167:1878 168:4028 169:782 170:5069 171:1000 172:4423 173:3219 174:912 175:1278 176:3655 177:4766 178:3783 179:2229 180:2564 181:4017 182:3370 183:2066 184:2298 185:21462 186:5109 187:4376 188:4203 189:4210 190:9644 191:1515 192:11138 193:9388 194:7737 195:5509 196:3255 197:3760 198:6070 199:8379 200:7985 201:6326 202:10335 203:10521 204:4503 205:3620 206:4551 207:3438 208:4163 209:5148 210:4503 211:2527 212:4487 213:3746 214:1061 215:42 216:6588 217:3100 218:1331 219:375 220:2107 221:1052 222:717 223:2316 End of report