IPv4 R&E Routing Table Report 23:05 GMT Fri 22 Apr, 2022 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: 881127 Prefixes after maximum aggregation (per Origin AS): 334920 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 430346 Number of IPv4 prefixes with a valid ROA: 315768 Number of IPv4 prefixes with an invalid ROA: 1189 Number of IPv4 prefixes with no ROA: 564170 Total ASes present in the Internet Routing Table: 72862 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62553 Origin ASes announcing only one prefix: 25715 Transit ASes present in the Internet Routing Table: 10309 Transit-only ASes present in the Internet Routing Table: 369 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 65 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 861 Number of instances of unregistered ASNs: 866 Number of 32-bit ASNs allocated by the RIRs: 39170 Number of 32-bit ASNs visible in the Routing Table: 32500 Prefixes from 32-bit ASNs in the Routing Table: 153084 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: 498 Number of addresses announced to Internet: 3066437888 Equivalent to 182 /8s, 198 /16s and 33 /24s Percentage of available address space announced: 82.8 Percentage of allocated address space announced: 82.8 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: 296048 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228972 Total APNIC prefixes after maximum aggregation: 65946 APNIC Deaggregation factor: 3.47 Prefixes being announced from the APNIC address blocks: 223889 Unique aggregates announced from the APNIC address blocks: 94590 APNIC Region origin ASes present in the Internet Routing Table: 12499 APNIC Prefixes per ASN: 17.91 APNIC Region origin ASes announcing only one prefix: 3549 APNIC Region transit ASes present in the Internet Routing Table: 1710 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 27 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7765 Number of APNIC addresses announced to Internet: 773400576 Equivalent to 46 /8s, 25 /16s and 40 /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, 131072-151865 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: 259795 Total ARIN prefixes after maximum aggregation: 119484 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 259908 Unique aggregates announced from the ARIN address blocks: 124612 ARIN Region origin ASes present in the Internet Routing Table: 18940 ARIN Prefixes per ASN: 13.72 ARIN Region origin ASes announcing only one prefix: 6905 ARIN Region transit ASes present in the Internet Routing Table: 1872 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 38 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4443 Number of ARIN addresses announced to Internet: 1295247360 Equivalent to 77 /8s, 51 /16s and 232 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 249180 Total RIPE prefixes after maximum aggregation: 115965 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 246548 Unique aggregates announced from the RIPE address blocks: 150574 RIPE Region origin ASes present in the Internet Routing Table: 28114 RIPE Prefixes per ASN: 8.77 RIPE Region origin ASes announcing only one prefix: 12038 RIPE Region transit ASes present in the Internet Routing Table: 4006 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10696 Number of RIPE addresses announced to Internet: 713764608 Equivalent to 42 /8s, 139 /16s and 47 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 114446 Total LACNIC prefixes after maximum aggregation: 27380 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114330 Unique aggregates announced from the LACNIC address blocks: 48477 LACNIC Region origin ASes present in the Internet Routing Table: 10946 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2658 LACNIC Region transit ASes present in the Internet Routing Table: 2215 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 65 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8642 Number of LACNIC addresses announced to Internet: 176339200 Equivalent to 10 /8s, 130 /16s and 185 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 27873 Total AfriNIC prefixes after maximum aggregation: 5479 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 35954 Unique aggregates announced from the AfriNIC address blocks: 11662 AfriNIC Region origin ASes present in the Internet Routing Table: 1622 AfriNIC Prefixes per ASN: 22.17 AfriNIC Region origin ASes announcing only one prefix: 565 AfriNIC Region transit ASes present in the Internet Routing Table: 331 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 954 Number of AfriNIC addresses announced to Internet: 107405824 Equivalent to 6 /8s, 102 /16s and 226 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9136 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5912 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3592 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3498 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3427 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2397 491 238 BBIL-AP BHARTI Airtel Ltd., IN 4766 2254 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2117 429 197 TATACOMM-AS TATA Communications formerl 24560 2048 855 376 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 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 6222 10267 2699 AMAZON-02, US 11492 4474 297 690 CABLEONE, US 22773 3935 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3900 264 31 VIASAT-SP-BACKBONE, US 16625 3620 1856 2555 AKAMAI-AS, US 6327 3430 1318 61 SHAW, CA 749 2882 50780 2138 DNIC-AS-00749, US 30036 2618 374 124 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2521 4962 424 CENTURYLINK-US-LEGACY-QWEST, US 20115 2255 3051 492 CHARTER-20115, 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 6787 1730 150 UNI2-AS, ES 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3918 3360 192 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2907 355 21 UKRTELNET, UA 12389 2900 2273 907 ROSTELECOM-AS, RU 9009 2473 247 1284 M247, GB 34984 2238 357 632 TELLCOM-AS, TR 58224 1803 931 602 TCI, IR 13188 1607 100 27 TRIOLAN, UA 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 10591 3392 560 Uninet S.A. de C.V., MX 10620 3469 518 747 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1758 296 471 Mega Cable, S.A. de C.V., MX 6503 1454 355 525 Axtel, S.A.B. de C.V., MX 28573 1385 2333 253 CLARO S.A., BR 3816 1254 667 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1085 369 21 Telefonica del Peru S.A.A., PE 11664 1023 191 447 Techtel LMDS Comunicaciones Interactiva 11172 961 133 63 Alestra, S. de R.L. de C.V., MX 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 24863 1654 393 21 LINKdotNET-AS, EG 24835 1473 523 33 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 907 65 59 ORANGE-COTE-IVOIRE, CI 36935 773 520 42 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 514 51 32 WANANCHI-, KE 37342 468 32 1 MOVITEL, MZ 23889 421 232 16 MauritiusTelecom, MU 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 8151 10591 3392 560 Uninet S.A. de C.V., MX 9808 9136 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6787 1730 150 UNI2-AS, ES 16509 6222 10267 2699 AMAZON-02, US 7545 5912 789 697 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4474 297 690 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 22773 3935 3072 358 ASN-CXA-ALL-CCI-22773-RDC, US 20940 3918 3360 192 AKAMAI-ASN1, NL 7155 3900 264 31 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 9808 9136 9095 CHINAMOBILE-CN China Mobile Communications Grou 12479 6787 6637 UNI2-AS, ES 7545 5912 5215 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4010 3971 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3900 3869 VIASAT-SP-BACKBONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 11492 4474 3784 CABLEONE, US 20940 3918 3726 AKAMAI-ASN1, NL 22773 3935 3577 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3592 3573 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 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.135.82.0/24 Origin: 206203 ASHNET-AS, US 23.135.82.0/24 Transit: 20473 AS-CHOOPA, US 23.135.104.0/24 Origin: 3257 GTT-BACKBONE GTT, US 23.135.104.0/24 Transit: 2914 NTT-LTD-2914, US 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 27.100.7.0/24 Origin: 56096 UNASSIGNED 27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet 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 /9:13 /10:40 /11:100 /12:303 /13:590 /14:1201 /15:2094 /16:13503 /17:8191 /18:13764 /19:24846 /20:42382 /21:50880 /22:107113 /23:94394 /24:521689 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5769 6787 UNI2-AS, ES 8151 4247 10591 Uninet S.A. de C.V., MX 8551 3476 4010 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3380 4474 CABLEONE, US 6327 3243 3430 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2990 3900 VIASAT-SP-BACKBONE, US 22773 2941 3935 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2758 2907 UKRTELNET, UA 30036 2274 2618 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1927 2:1033 3:154 4:7 5:3780 6:103 7:5 8:1527 9:1 11:172 12:1708 13:299 14:2367 15:193 16:45 17:381 18:155 20:194 21:4 22:188 23:5619 24:2282 25:6 27:2601 29:19 31:2412 32:93 34:1 35:73 36:1776 37:4415 38:2810 39:700 40:153 41:3947 42:1088 43:2183 44:288 45:15963 46:4110 47:308 49:1675 50:1929 51:100 52:1418 54:363 55:715 56:8 57:59 58:1692 59:1116 60:957 61:2260 62:2480 63:1951 64:5484 65:2296 66:4815 67:2971 68:1192 69:4146 70:1338 71:657 72:3046 74:2656 75:1387 76:589 77:2178 78:1844 79:3113 80:1975 81:1593 82:1497 83:1205 84:1351 85:2898 86:706 87:1957 88:1096 89:3265 90:521 91:7619 92:1997 93:2587 94:3502 95:3868 96:1294 97:351 98:991 99:736 100:75 101:1283 102:2060 103:28863 104:4353 105:466 106:856 107:2512 108:827 109:4209 110:2051 111:3242 112:2028 113:1461 114:1480 115:1958 116:1876 117:2516 118:2332 119:1870 120:1656 121:1018 122:2540 123:2098 124:1534 125:2048 128:1173 129:1090 130:956 131:2033 132:791 133:373 134:1918 135:291 136:883 137:861 138:2437 139:1501 140:857 141:1387 142:1282 143:1467 144:1209 145:344 146:1798 147:1482 148:2211 149:1724 150:854 151:1082 152:1850 153:458 154:3536 155:1426 156:1767 157:1228 158:1038 159:2124 160:2474 161:1321 162:3446 163:1248 164:1624 165:1618 166:695 167:1736 168:3774 169:833 170:4435 171:828 172:3137 173:3078 174:1022 175:1143 176:3515 177:4611 178:3507 179:2016 180:2310 181:2963 182:3191 183:1951 184:2389 185:19449 186:4370 187:3700 188:3855 189:3183 190:8871 191:1319 192:10971 193:8599 194:6973 195:4947 196:2981 197:2405 198:5971 199:6018 200:7412 201:5689 202:10082 203:9989 204:4550 205:3398 206:3692 207:3344 208:4051 209:4631 210:4048 211:2333 212:3994 213:3428 214:1158 215:67 216:6423 217:2660 218:1249 219:406 220:1674 221:978 222:670 223:2109 End of report