IPv4 R&E Routing Table Report 23:05 GMT Tue 24 May, 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: 883024 Prefixes after maximum aggregation (per Origin AS): 335885 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 432725 Number of IPv4 prefixes with a valid ROA: 326322 Number of IPv4 prefixes with an invalid ROA: 1063 Number of IPv4 prefixes with no ROA: 555639 Total ASes present in the Internet Routing Table: 73012 Prefixes per ASN: 12.09 Origin-only ASes present in the Internet Routing Table: 62706 Origin ASes announcing only one prefix: 25753 Transit ASes present in the Internet Routing Table: 10306 Transit-only ASes present in the Internet Routing Table: 380 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 65 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 900 Number of instances of unregistered ASNs: 903 Number of 32-bit ASNs allocated by the RIRs: 39457 Number of 32-bit ASNs visible in the Routing Table: 32683 Prefixes from 32-bit ASNs in the Routing Table: 153979 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 524 Number of addresses announced to Internet: 3064100096 Equivalent to 182 /8s, 162 /16s and 117 /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: 297063 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228892 Total APNIC prefixes after maximum aggregation: 66178 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 224119 Unique aggregates announced from the APNIC address blocks: 94876 APNIC Region origin ASes present in the Internet Routing Table: 12593 APNIC Prefixes per ASN: 17.80 APNIC Region origin ASes announcing only one prefix: 3596 APNIC Region transit ASes present in the Internet Routing Table: 1739 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 33 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7859 Number of APNIC addresses announced to Internet: 773261056 Equivalent to 46 /8s, 23 /16s and 7 /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: 260727 Total ARIN prefixes after maximum aggregation: 119845 ARIN Deaggregation factor: 2.18 Prefixes being announced from the ARIN address blocks: 260706 Unique aggregates announced from the ARIN address blocks: 126030 ARIN Region origin ASes present in the Internet Routing Table: 18972 ARIN Prefixes per ASN: 13.74 ARIN Region origin ASes announcing only one prefix: 6919 ARIN Region transit ASes present in the Internet Routing Table: 1859 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4486 Number of ARIN addresses announced to Internet: 1292430848 Equivalent to 77 /8s, 8 /16s and 238 /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: 249857 Total RIPE prefixes after maximum aggregation: 116350 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 247203 Unique aggregates announced from the RIPE address blocks: 151056 RIPE Region origin ASes present in the Internet Routing Table: 28115 RIPE Prefixes per ASN: 8.79 RIPE Region origin ASes announcing only one prefix: 12021 RIPE Region transit ASes present in the Internet Routing Table: 4000 Average RIPE Region AS path length visible: 4.5 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10710 Number of RIPE addresses announced to Internet: 713979392 Equivalent to 42 /8s, 142 /16s and 118 /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: 114617 Total LACNIC prefixes after maximum aggregation: 27376 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 114451 Unique aggregates announced from the LACNIC address blocks: 48628 LACNIC Region origin ASes present in the Internet Routing Table: 10955 LACNIC Prefixes per ASN: 10.45 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2199 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 65 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8669 Number of LACNIC addresses announced to Internet: 176435712 Equivalent to 10 /8s, 132 /16s and 50 /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: 28031 Total AfriNIC prefixes after maximum aggregation: 5471 AfriNIC Deaggregation factor: 5.12 Prefixes being announced from the AfriNIC address blocks: 36021 Unique aggregates announced from the AfriNIC address blocks: 11709 AfriNIC Region origin ASes present in the Internet Routing Table: 1630 AfriNIC Prefixes per ASN: 22.10 AfriNIC Region origin ASes announcing only one prefix: 560 AfriNIC Region transit ASes present in the Internet Routing Table: 328 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 39 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 959 Number of AfriNIC addresses announced to Internet: 107700480 Equivalent to 6 /8s, 107 /16s and 97 /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 9165 8883 40 CHINAMOBILE-CN China Mobile Communicati 7545 5899 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3559 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3492 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3426 1880 56 VNPT-AS-VN VNPT Corp, VN 9498 2409 499 236 BBIL-AP BHARTI Airtel Ltd., IN 4766 2251 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2122 438 203 TATACOMM-AS TATA Communications formerl 24560 2047 853 380 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 6441 10354 2798 AMAZON-02, US 11492 4512 299 657 CABLEONE, US 22773 3923 3072 364 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3535 1819 2530 AKAMAI-AS, US 6327 3439 1319 63 SHAW, CA 749 2873 50795 2130 DNIC-AS-00749, US 30036 2620 373 180 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2462 4961 419 CENTURYLINK-US-LEGACY-QWEST, US 20115 2248 3050 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 6813 1730 150 UNI2-AS, ES 8551 3996 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3964 3360 194 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 12389 2898 2273 907 ROSTELECOM-AS, RU 6849 2890 355 21 UKRTELNET, UA 9009 2472 246 1277 M247, GB 34984 2236 357 628 TELLCOM-AS, TR 58224 1814 931 607 TCI, IR 13188 1610 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 10645 3402 559 Uninet S.A. de C.V., MX 10620 3477 518 744 Telmex Colombia S.A., CO 11830 2437 369 63 Instituto Costarricense de Electricidad 13999 1831 300 473 Mega Cable, S.A. de C.V., MX 6503 1448 355 528 Axtel, S.A.B. de C.V., MX 28573 1368 2333 255 CLARO S.A., BR 3816 1256 671 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1078 369 21 Telefonica del Peru S.A.A., PE 11664 1026 192 444 Techtel LMDS Comunicaciones Interactiva 11172 958 133 61 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 1656 393 21 LINKdotNET-AS, EG 24835 1472 519 32 RAYA-AS, EG 36992 1313 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 957 65 64 ORANGE-COTE-IVOIRE, CI 36935 773 520 42 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 15399 514 51 34 WANANCHI-, KE 37342 459 32 1 MOVITEL, MZ 23889 420 232 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 10645 3402 559 Uninet S.A. de C.V., MX 9808 9165 8883 40 CHINAMOBILE-CN China Mobile Communicati 12479 6813 1730 150 UNI2-AS, ES 16509 6441 10354 2798 AMAZON-02, US 7545 5899 789 694 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4512 299 657 CABLEONE, US 8551 3996 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3964 3360 194 AKAMAI-ASN1, NL 22773 3923 3072 364 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 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 9165 9125 CHINAMOBILE-CN China Mobile Communications Grou 12479 6813 6663 UNI2-AS, ES 7545 5899 5205 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 3996 3957 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 11492 4512 3855 CABLEONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 20940 3964 3770 AKAMAI-ASN1, NL 16509 6441 3643 AMAZON-02, US 22773 3923 3559 ASN-CXA-ALL-CCI-22773-RDC, US 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 17033 UNALLOCATED 8.48.225.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.129.40.0/24 Origin: 6461 ZAYO-6461, US 23.129.40.0/24 Transit: 2914 NTT-LTD-2914, US 23.129.56.0/24 Origin: 6461 ZAYO-6461, US 23.129.56.0/24 Transit: 2914 NTT-LTD-2914, US 23.129.136.0/24 Origin: 6461 ZAYO-6461, US 23.129.136.0/24 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 23.166.208.0/24 Origin: 398906 LUFTCLOUD-ASN-01, US 23.166.208.0/24 Transit: 132132 REPUBLICTELECOM-SG MyRepublic Ltd., SG 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 /13:587 /14:1201 /15:2093 /16:13488 /17:8234 /18:13735 /19:24815 /20:42587 /21:50714 /22:107080 /23:94669 /24:523343 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5789 6813 UNI2-AS, ES 8151 4365 10645 Uninet S.A. de C.V., MX 8551 3462 3996 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3415 4512 CABLEONE, US 6327 3250 3439 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2924 3923 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2741 2890 UKRTELNET, UA 30036 2277 2620 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1920 2:1021 3:154 4:6 5:3791 6:104 7:5 8:1528 9:1 11:172 12:1707 13:296 14:2372 15:201 16:42 17:381 18:159 20:212 21:4 22:188 23:5649 24:2307 25:6 27:2600 29:19 31:2425 32:92 34:4 35:80 36:1792 37:4427 38:2882 39:702 40:152 41:3971 42:1096 43:2168 44:291 45:16007 46:4133 47:298 49:1676 50:2158 51:108 52:1433 54:370 55:755 56:8 57:60 58:1701 59:1126 60:950 61:2249 62:2519 63:1940 64:5517 65:2333 66:4820 67:2973 68:1192 69:4159 70:1329 71:684 72:3052 74:2646 75:1393 76:579 77:2163 78:1849 79:3115 80:1991 81:1595 82:1495 83:1199 84:1352 85:2921 86:707 87:1962 88:1125 89:3264 90:531 91:7623 92:2005 93:2587 94:3464 95:3845 96:1310 97:349 98:997 99:737 100:77 101:1272 102:2079 103:29028 104:4393 105:467 106:873 107:2514 108:822 109:4256 110:2025 111:3246 112:2027 113:1479 114:1478 115:1974 116:1887 117:2509 118:2333 119:1859 120:1664 121:1019 122:2546 123:2098 124:1531 125:2059 128:1190 129:1087 130:969 131:2046 132:793 133:378 134:1900 135:291 136:877 137:861 138:2423 139:1501 140:856 141:1408 142:1277 143:1431 144:1203 145:347 146:1801 147:1489 148:2220 149:1717 150:849 151:1078 152:1845 153:459 154:3449 155:1421 156:1756 157:1235 158:1048 159:2204 160:2531 161:1279 162:3457 163:1263 164:1645 165:1615 166:713 167:1733 168:3743 169:836 170:4467 171:828 172:3171 173:3119 174:1023 175:1133 176:3579 177:4650 178:3531 179:2032 180:2324 181:2979 182:3204 183:1950 184:2374 185:19483 186:4322 187:3778 188:3872 189:3276 190:8865 191:1300 192:10965 193:8617 194:6986 195:4920 196:2984 197:2370 198:5940 199:6028 200:7482 201:5722 202:10097 203:10004 204:4533 205:3427 206:3687 207:3332 208:3999 209:4640 210:4100 211:2347 212:4016 213:3418 214:1154 215:67 216:6453 217:2675 218:1264 219:405 220:1664 221:978 222:670 223:2119 End of report