IPv4 R&E Routing Table Report 23:05 GMT Fri 27 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: 883436 Prefixes after maximum aggregation (per Origin AS): 336234 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 433146 Number of IPv4 prefixes with a valid ROA: 326920 Number of IPv4 prefixes with an invalid ROA: 1197 Number of IPv4 prefixes with no ROA: 555319 Total ASes present in the Internet Routing Table: 73023 Prefixes per ASN: 12.10 Origin-only ASes present in the Internet Routing Table: 62694 Origin ASes announcing only one prefix: 25752 Transit ASes present in the Internet Routing Table: 10329 Transit-only ASes present in the Internet Routing Table: 382 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 64 Max AS path prepend of ASN (267602) 58 Prefixes from unregistered ASNs in the Routing Table: 906 Number of instances of unregistered ASNs: 911 Number of 32-bit ASNs allocated by the RIRs: 39486 Number of 32-bit ASNs visible in the Routing Table: 32697 Prefixes from 32-bit ASNs in the Routing Table: 153870 Number of bogon 32-bit ASNs visible in the Routing Table: 18 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 505 Number of addresses announced to Internet: 3065240320 Equivalent to 182 /8s, 179 /16s and 219 /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: 297261 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 228890 Total APNIC prefixes after maximum aggregation: 66221 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 224152 Unique aggregates announced from the APNIC address blocks: 94986 APNIC Region origin ASes present in the Internet Routing Table: 12596 APNIC Prefixes per ASN: 17.80 APNIC Region origin ASes announcing only one prefix: 3612 APNIC Region transit ASes present in the Internet Routing Table: 1735 Average APNIC Region AS path length visible: 4.0 Max APNIC Region AS path length visible: 32 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7863 Number of APNIC addresses announced to Internet: 773469696 Equivalent to 46 /8s, 26 /16s and 54 /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: 261057 Total ARIN prefixes after maximum aggregation: 120027 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 260879 Unique aggregates announced from the ARIN address blocks: 126153 ARIN Region origin ASes present in the Internet Routing Table: 18971 ARIN Prefixes per ASN: 13.75 ARIN Region origin ASes announcing only one prefix: 6914 ARIN Region transit ASes present in the Internet Routing Table: 1868 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: 4491 Number of ARIN addresses announced to Internet: 1293316352 Equivalent to 77 /8s, 22 /16s and 113 /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: 250161 Total RIPE prefixes after maximum aggregation: 116436 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 247650 Unique aggregates announced from the RIPE address blocks: 151226 RIPE Region origin ASes present in the Internet Routing Table: 28111 RIPE Prefixes per ASN: 8.81 RIPE Region origin ASes announcing only one prefix: 12003 RIPE Region transit ASes present in the Internet Routing Table: 4006 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10704 Number of RIPE addresses announced to Internet: 714189824 Equivalent to 42 /8s, 145 /16s and 172 /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: 114540 Total LACNIC prefixes after maximum aggregation: 27382 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 114368 Unique aggregates announced from the LACNIC address blocks: 48629 LACNIC Region origin ASes present in the Internet Routing Table: 10957 LACNIC Prefixes per ASN: 10.44 LACNIC Region origin ASes announcing only one prefix: 2655 LACNIC Region transit ASes present in the Internet Routing Table: 2214 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 64 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8672 Number of LACNIC addresses announced to Internet: 176357120 Equivalent to 10 /8s, 130 /16s and 255 /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: 27882 Total AfriNIC prefixes after maximum aggregation: 5502 AfriNIC Deaggregation factor: 5.07 Prefixes being announced from the AfriNIC address blocks: 35882 Unique aggregates announced from the AfriNIC address blocks: 11736 AfriNIC Region origin ASes present in the Internet Routing Table: 1639 AfriNIC Prefixes per ASN: 21.89 AfriNIC Region origin ASes announcing only one prefix: 568 AfriNIC Region transit ASes present in the Internet Routing Table: 332 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 35 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 967 Number of AfriNIC addresses announced to Internet: 107619840 Equivalent to 6 /8s, 106 /16s and 38 /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 9193 8883 40 CHINAMOBILE-CN China Mobile Communicati 7545 5926 789 693 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3555 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 2410 499 236 BBIL-AP BHARTI Airtel Ltd., IN 4766 2250 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2134 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2122 425 214 TATACOMM-AS TATA Communications formerl 24560 2048 852 384 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 6478 10359 2813 AMAZON-02, US 11492 4515 299 659 CABLEONE, US 22773 3916 3072 363 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3531 1818 2526 AKAMAI-AS, US 6327 3441 1319 64 SHAW, CA 749 2867 50793 2125 DNIC-AS-00749, US 30036 2624 373 159 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2446 4961 418 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 6811 1730 150 UNI2-AS, ES 8551 3997 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3956 3360 193 AKAMAI-ASN1, NL 39891 3819 220 34 ALJAWWALSTC-AS, SA 6849 2927 355 21 UKRTELNET, UA 12389 2897 2273 907 ROSTELECOM-AS, RU 9009 2470 246 1276 M247, GB 34984 2239 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 10657 3404 555 Uninet S.A. de C.V., MX 10620 3480 518 736 Telmex Colombia S.A., CO 11830 2438 369 63 Instituto Costarricense de Electricidad 13999 1835 303 473 Mega Cable, S.A. de C.V., MX 6503 1454 355 528 Axtel, S.A.B. de C.V., MX 28573 1355 2333 255 CLARO S.A., BR 3816 1256 671 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1077 369 21 Telefonica del Peru S.A.A., PE 11664 1027 192 442 Techtel LMDS Comunicaciones Interactiva 11172 957 117 60 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 1655 393 21 LINKdotNET-AS, EG 24835 1466 497 30 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 956 65 64 ORANGE-COTE-IVOIRE, CI 36935 675 520 42 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 15399 512 51 34 WANANCHI-, KE 37342 464 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 10657 3404 555 Uninet S.A. de C.V., MX 9808 9193 8883 40 CHINAMOBILE-CN China Mobile Communicati 12479 6811 1730 150 UNI2-AS, ES 16509 6478 10359 2813 AMAZON-02, US 7545 5926 789 693 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4515 299 659 CABLEONE, US 8551 3997 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3956 3360 193 AKAMAI-ASN1, NL 22773 3916 3072 363 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 9193 9153 CHINAMOBILE-CN China Mobile Communications Grou 12479 6811 6661 UNI2-AS, ES 7545 5926 5233 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 3997 3958 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 11492 4515 3856 CABLEONE, US 39891 3819 3785 ALJAWWALSTC-AS, SA 20940 3956 3763 AKAMAI-ASN1, NL 16509 6478 3665 AMAZON-02, US 22773 3916 3553 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 23.141.0.0/24 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 23.185.16.0/24 Origin: 399244 BLOOM-HOST, US 23.185.16.0/24 Transit: 13335 CLOUDFLARENET, US 23.185.17.0/24 Origin: 399244 BLOOM-HOST, US 23.185.17.0/24 Transit: 13335 CLOUDFLARENET, 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 /13:587 /14:1201 /15:2095 /16:13495 /17:8236 /18:13763 /19:24804 /20:42673 /21:50759 /22:107070 /23:94625 /24:523650 /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 5784 6811 UNI2-AS, ES 8151 4377 10657 Uninet S.A. de C.V., MX 8551 3463 3997 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3418 4515 CABLEONE, US 6327 3250 3441 SHAW, CA 39891 3131 3819 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2918 3916 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2778 2927 UKRTELNET, UA 30036 2280 2624 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1911 2:1018 3:154 4:6 5:3795 6:103 7:5 8:1527 9:1 11:172 12:1704 13:295 14:2370 15:202 16:42 17:383 18:162 20:210 21:4 22:188 23:5639 24:2310 25:6 27:2602 29:19 31:2435 32:92 34:4 35:82 36:1793 37:4453 38:2896 39:705 40:152 41:3961 42:1110 43:2171 44:291 45:16044 46:4126 47:297 49:1671 50:2169 51:108 52:1434 54:371 55:701 56:8 57:59 58:1689 59:1114 60:956 61:2252 62:2519 63:1937 64:5512 65:2333 66:4826 67:2976 68:1192 69:4160 70:1330 71:684 72:3048 74:2641 75:1393 76:586 77:2162 78:1850 79:3114 80:1998 81:1606 82:1495 83:1207 84:1351 85:2930 86:710 87:1970 88:1124 89:3287 90:535 91:7618 92:2014 93:2592 94:3497 95:3895 96:1307 97:349 98:998 99:737 100:77 101:1273 102:2093 103:29061 104:4421 105:457 106:875 107:2523 108:833 109:4254 110:2021 111:3262 112:2032 113:1473 114:1475 115:1976 116:1892 117:2506 118:2314 119:1856 120:1665 121:1020 122:2545 123:2092 124:1530 125:2060 128:1184 129:1075 130:969 131:2042 132:794 133:378 134:1900 135:291 136:882 137:862 138:2429 139:1503 140:855 141:1417 142:1282 143:1428 144:1208 145:347 146:1803 147:1493 148:2221 149:1725 150:849 151:1079 152:1849 153:459 154:3439 155:1423 156:1749 157:1241 158:1046 159:2208 160:2526 161:1280 162:3459 163:1268 164:1649 165:1616 166:719 167:1735 168:3744 169:831 170:4473 171:828 172:3180 173:3105 174:1024 175:1131 176:3582 177:4658 178:3545 179:2026 180:2324 181:2974 182:3210 183:1950 184:2370 185:19500 186:4257 187:3782 188:3874 189:3282 190:8866 191:1303 192:10987 193:8615 194:7006 195:4945 196:2976 197:2369 198:5944 199:6028 200:7485 201:5720 202:10100 203:9995 204:4536 205:3427 206:3683 207:3335 208:4005 209:4638 210:4091 211:2346 212:4005 213:3418 214:1154 215:67 216:6454 217:2671 218:1262 219:405 220:1675 221:978 222:670 223:2118 End of report