IPv4 R&E Routing Table Report 23:05 GMT Tue 25 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: 975210 Prefixes after maximum aggregation (per Origin AS): 374017 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475810 Number of IPv4 prefixes with a valid ROA: 536193 Number of IPv4 prefixes with an invalid ROA: 1081 Number of IPv4 prefixes with no ROA: 437936 Total ASes present in the Internet Routing Table: 76586 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65708 Origin ASes announcing only one prefix: 26869 Transit ASes present in the Internet Routing Table: 10878 Transit-only ASes present in the Internet Routing Table: 533 Paths with bogon ASNs present in the IPv4 Routing Table: 11 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: 988 Number of instances of unregistered ASNs: 992 Number of 32-bit ASNs allocated by the RIRs: 46134 Number of 32-bit ASNs visible in the Routing Table: 37976 Prefixes from 32-bit ASNs in the Routing Table: 199634 Number of bogon 32-bit ASNs visible in the Routing Table: 14 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 480 Number of addresses announced to Internet: 3107962624 Equivalent to 185 /8s, 63 /16s and 191 /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: 320178 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255061 Total APNIC prefixes after maximum aggregation: 76297 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246872 Unique aggregates announced from the APNIC address blocks: 102607 APNIC Region origin ASes present in the Internet Routing Table: 14521 APNIC Prefixes per ASN: 17.00 APNIC Region origin ASes announcing only one prefix: 4436 APNIC Region transit ASes present in the Internet Routing Table: 1961 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 49 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10051 Number of APNIC addresses announced to Internet: 748931072 Equivalent to 44 /8s, 163 /16s and 200 /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: 288395 Total ARIN prefixes after maximum aggregation: 128313 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288983 Unique aggregates announced from the ARIN address blocks: 136680 ARIN Region origin ASes present in the Internet Routing Table: 19188 ARIN Prefixes per ASN: 15.06 ARIN Region origin ASes announcing only one prefix: 7027 ARIN Region transit ASes present in the Internet Routing Table: 1898 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: 5157 Number of ARIN addresses announced to Internet: 1350108672 Equivalent to 80 /8s, 121 /16s and 6 /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: 272146 Total RIPE prefixes after maximum aggregation: 132786 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270503 Unique aggregates announced from the RIPE address blocks: 173653 RIPE Region origin ASes present in the Internet Routing Table: 28862 RIPE Prefixes per ASN: 9.37 RIPE Region origin ASes announcing only one prefix: 12049 RIPE Region transit ASes present in the Internet Routing Table: 3974 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: 12334 Number of RIPE addresses announced to Internet: 732256000 Equivalent to 43 /8s, 165 /16s and 87 /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: 123555 Total LACNIC prefixes after maximum aggregation: 29257 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 120186 Unique aggregates announced from the LACNIC address blocks: 48862 LACNIC Region origin ASes present in the Internet Routing Table: 11211 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2664 LACNIC Region transit ASes present in the Internet Routing Table: 2484 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: 9163 Number of LACNIC addresses announced to Internet: 171583488 Equivalent to 10 /8s, 58 /16s and 40 /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: 35065 Total AfriNIC prefixes after maximum aggregation: 6745 AfriNIC Deaggregation factor: 5.20 Prefixes being announced from the AfriNIC address blocks: 48186 Unique aggregates announced from the AfriNIC address blocks: 13603 AfriNIC Region origin ASes present in the Internet Routing Table: 1906 AfriNIC Prefixes per ASN: 25.28 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 373 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: 1271 Number of AfriNIC addresses announced to Internet: 104844032 Equivalent to 6 /8s, 63 /16s and 203 /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 10329 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4285 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4226 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3912 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3690 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3267 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 434 196 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 12948 39642 3985 AMAZON-02, US 11492 4675 310 585 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 174 3631 8765 952 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 2982 1250 2197 AKAMAI-AS, US 396982 2945 3664 458 GOOGLE-CLOUD-PLATFORM, US 36352 2566 213 797 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 7744 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3897 3395 125 AKAMAI-ASN1, NL 9009 3757 324 1946 M247, RO 12389 3030 2303 889 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2056 147 1516 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 11887 3245 579 UNINET, MX 10620 3523 486 970 Telmex Colombia S.A., CO 13999 2510 539 369 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1328 781 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1194 371 22 Telefonica del Peru S.A.A., PE 11664 1165 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1070 359 174 Axtel, S.A.B. de C.V., MX 22884 1051 67 377 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 1618 389 18 LINKdotNET-AS, EG 29571 1567 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 903 1083 15 MOBINIL, EG 6713 562 1861 35 IAM-AS, MA 15399 536 57 59 WANANCHI-, 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 12948 39642 3985 AMAZON-02, US 8151 11887 3245 579 UNINET, MX 9808 10329 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7744 1714 145 UNI2-AS, ES 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4675 310 585 CABLEONE, US 9498 4285 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4226 347 25 FPT-AS-AP FPT Telecom Company, VN 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 11887 11308 UNINET, MX 9808 10329 10241 CHINAMOBILE-CN China Mobile Communications Grou 12479 7744 7599 UNI2-AS, ES 7545 6215 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4226 4201 FPT-AS-AP FPT Telecom Company, VN 11492 4675 4090 CABLEONE, US 7155 4173 4090 VIASAT-SP-BACKBONE, US 9498 4285 4009 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 Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 36732 COMCAST-36732, US Complete listing at https://bgp.nsrc.org/REN/Singapore/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: 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 /14:1216 /15:2143 /16:13927 /17:8243 /18:13656 /19:24492 /20:43684 /21:51566 /22:111708 /23:101051 /24:602474 /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 6677 7744 UNI2-AS, ES 8151 6085 11887 UNINET, MX 11492 3528 4675 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3120 4173 VIASAT-SP-BACKBONE, US 22773 2516 3380 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2325 12948 AMAZON-02, US 30036 2218 2558 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) ---------------------------------------------- 1:2337 2:1506 3:599 4:10 5:4563 6:163 7:6 8:1551 9:1 11:172 12:1372 13:350 14:2513 15:351 16:279 17:361 18:914 20:463 21:4 22:188 23:7301 24:3020 25:2 27:2732 29:19 31:3210 32:37 34:82 35:204 36:2397 37:4726 38:8869 39:899 40:154 41:4162 42:1910 43:2541 44:356 45:18417 46:4927 47:288 49:1987 50:1894 51:587 52:1553 54:301 55:1088 56:11 57:249 58:2191 59:1281 60:1169 61:2813 62:2903 63:1827 64:5486 65:2177 66:4585 67:3009 68:1108 69:3959 70:1110 71:613 72:2847 74:2806 75:1659 76:612 77:2686 78:1854 79:1676 80:2192 81:2018 82:2924 83:1413 84:1810 85:3359 86:1047 87:2144 88:1278 89:4335 90:783 91:8321 92:2782 93:2884 94:4059 95:4259 96:1424 97:315 98:990 99:739 100:71 101:1304 102:3701 103:32235 104:4804 105:732 106:998 107:2595 108:1197 109:3966 110:2229 111:3330 112:2039 113:1791 114:1945 115:2119 116:2033 117:2742 118:2856 119:1938 120:1871 121:1359 122:2736 123:2167 124:1607 125:2868 126:86 128:1542 129:956 130:1258 131:1885 132:777 133:451 134:1529 135:328 136:1280 137:1107 138:2878 139:1608 140:1564 141:1489 142:1812 143:1650 144:1061 145:512 146:2149 147:2091 148:2622 149:2886 150:1250 151:2036 152:2087 153:504 154:7942 155:1620 156:3246 157:1904 158:1264 159:2426 160:3548 161:1925 162:3703 163:1943 164:1693 165:2202 166:1417 167:1876 168:4027 169:788 170:5096 171:1002 172:4443 173:3229 174:910 175:1276 176:3685 177:4729 178:3815 179:2321 180:2573 181:4040 182:3371 183:2051 184:2290 185:21468 186:5099 187:4408 188:4219 189:4173 190:9624 191:1536 192:11135 193:9408 194:7778 195:5518 196:3257 197:3765 198:6060 199:8393 200:8033 201:6275 202:10330 203:10523 204:4536 205:3628 206:4579 207:3425 208:4177 209:5181 210:4506 211:2527 212:4502 213:3741 214:1048 215:46 216:6560 217:3088 218:1326 219:374 220:2087 221:1045 222:719 223:2318 End of report