This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from RENU's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 18:35 GMT Sat 07 May, 2022 IPv4 BGP Table (Global) as seen at RENU. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/RENU/ Analysis Summary ---------------- BGP routing table entries examined: 913137 Prefixes after maximum aggregation (per Origin AS): 337666 Deaggregation factor: 2.70 Unique aggregates announced (without unneeded subnets): 430898 Number of IPv4 prefixes with a valid ROA: 674279 Number of IPv4 prefixes with an invalid ROA: 5511 Number of IPv4 prefixes with no ROA: 1146484 Total ASes present in the Internet Routing Table: 73207 Prefixes per ASN: 12.47 Origin-only ASes present in the Internet Routing Table: 62735 Origin ASes announcing only one prefix: 25327 Transit ASes present in the Internet Routing Table: 10472 Transit-only ASes present in the Internet Routing Table: 380 Average AS path length visible in the Internet Routing Table: 5.6 Max AS path length visible: 250 Max AS path prepend of ASN ( 51196) 246 Prefixes from unregistered ASNs in the Routing Table: 1049 Number of instances of unregistered ASNs: 1057 Number of 32-bit ASNs allocated by the RIRs: 39323 Number of 32-bit ASNs visible in the Routing Table: 32676 Prefixes from 32-bit ASNs in the Routing Table: 159824 Number of bogon 32-bit ASNs visible in the Routing Table: 56 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 493 Number of addresses announced to Internet: 3067238912 Equivalent to 182 /8s, 210 /16s and 90 /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: 315304 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 231940 Total APNIC prefixes after maximum aggregation: 66235 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 227078 Unique aggregates announced from the APNIC address blocks: 94909 APNIC Region origin ASes present in the Internet Routing Table: 12600 APNIC Prefixes per ASN: 18.02 APNIC Region origin ASes announcing only one prefix: 3577 APNIC Region transit ASes present in the Internet Routing Table: 1737 Average APNIC Region AS path length visible: 6.1 Max APNIC Region AS path length visible: 32 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7831 Number of APNIC addresses announced to Internet: 773603840 Equivalent to 46 /8s, 28 /16s and 66 /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: 262918 Total ARIN prefixes after maximum aggregation: 119955 ARIN Deaggregation factor: 2.19 Prefixes being announced from the ARIN address blocks: 262929 Unique aggregates announced from the ARIN address blocks: 124856 ARIN Region origin ASes present in the Internet Routing Table: 19052 ARIN Prefixes per ASN: 13.80 ARIN Region origin ASes announcing only one prefix: 6918 ARIN Region transit ASes present in the Internet Routing Table: 1951 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 37 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4483 Number of ARIN addresses announced to Internet: 1295446272 Equivalent to 77 /8s, 54 /16s and 241 /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: 261090 Total RIPE prefixes after maximum aggregation: 117682 RIPE Deaggregation factor: 2.22 Prefixes being announced from the RIPE address blocks: 258431 Unique aggregates announced from the RIPE address blocks: 150445 RIPE Region origin ASes present in the Internet Routing Table: 28177 RIPE Prefixes per ASN: 9.17 RIPE Region origin ASes announcing only one prefix: 12014 RIPE Region transit ASes present in the Internet Routing Table: 4026 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 250 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10731 Number of RIPE addresses announced to Internet: 714045696 Equivalent to 42 /8s, 143 /16s and 121 /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: 124563 Total LACNIC prefixes after maximum aggregation: 27553 LACNIC Deaggregation factor: 4.52 Prefixes being announced from the LACNIC address blocks: 124303 Unique aggregates announced from the LACNIC address blocks: 48528 LACNIC Region origin ASes present in the Internet Routing Table: 10972 LACNIC Prefixes per ASN: 11.33 LACNIC Region origin ASes announcing only one prefix: 2292 LACNIC Region transit ASes present in the Internet Routing Table: 2236 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 67 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8663 Number of LACNIC addresses announced to Internet: 176468736 Equivalent to 10 /8s, 132 /16s and 179 /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: 31577 Total AfriNIC prefixes after maximum aggregation: 5534 AfriNIC Deaggregation factor: 5.71 Prefixes being announced from the AfriNIC address blocks: 39903 Unique aggregates announced from the AfriNIC address blocks: 11731 AfriNIC Region origin ASes present in the Internet Routing Table: 1634 AfriNIC Prefixes per ASN: 24.42 AfriNIC Region origin ASes announcing only one prefix: 526 AfriNIC Region transit ASes present in the Internet Routing Table: 330 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 37 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 968 Number of AfriNIC addresses announced to Internet: 107398144 Equivalent to 6 /8s, 102 /16s and 196 /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 9131 8883 41 CHINAMOBILE-CN China Mobile Communicati 7545 5917 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3592 1330 19 VIETEL-AS-AP Viettel Group, VN 45899 3516 1880 56 VNPT-AS-VN VNPT Corp, VN 7713 3501 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon 9498 2406 499 241 BBIL-AP BHARTI Airtel Ltd., IN 4766 2251 11119 595 KIXS-AS-KR Korea Telecom, KR 45090 2187 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 4755 2119 438 201 TATACOMM-AS TATA Communications formerl 24560 2053 855 379 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 6358 10283 2729 AMAZON-02, US 11492 4490 298 690 CABLEONE, US 22773 3921 3050 352 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3901 264 31 VIASAT-SP-BACKBONE, US 16625 3597 1839 2541 AKAMAI-AS, US 6327 3436 1318 61 SHAW, CA 749 2881 50780 2137 DNIC-AS-00749, US 30036 2622 374 138 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2514 4961 423 CENTURYLINK-US-LEGACY-QWEST, US 20115 2251 3051 492 CHARTER-20115, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6772 1730 150 UNI2-AS, ES 9121 6708 1692 17 TTNET, TR 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3942 3360 199 AKAMAI-ASN1, NL 39891 3683 212 32 ALJAWWALSTC-AS, SA 6849 2941 355 21 UKRTELNET, UA 12389 2921 2273 908 ROSTELECOM-AS, RU 9009 2496 250 1297 M247, GB 34984 2240 358 633 TELLCOM-AS, TR 47331 2090 329 1601 TTNET, TR Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10580 3394 562 Uninet S.A. de C.V., MX 10620 3474 519 737 Telmex Colombia S.A., CO 11830 2433 369 63 Instituto Costarricense de Electricidad 13999 1780 298 470 Mega Cable, S.A. de C.V., MX 6503 1454 355 527 Axtel, S.A.B. de C.V., MX 28573 1389 2333 253 CLARO S.A., BR 3816 1256 669 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1080 369 21 Telefonica del Peru S.A.A., PE 11664 1017 191 442 Techtel LMDS Comunicaciones Interactiva 11172 960 133 63 Alestra, S. de R.L. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 37457 1945 323 62 Telkom-Internet, ZA 24863 1653 393 21 LINKdotNET-AS, EG 24835 1442 501 30 RAYA-AS, EG 36992 1314 1519 263 ETISALAT-MISR, EG 36903 1199 545 114 MT-MPLS, MA 29571 931 65 58 ORANGE-COTE-IVOIRE, CI 36935 619 520 42 Vodafone-, EG 6713 611 1863 34 IAM-AS, MA 15399 497 50 30 WANANCHI-, KE 37342 467 32 1 MOVITEL, MZ Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10580 3394 562 Uninet S.A. de C.V., MX 9808 9131 8883 41 CHINAMOBILE-CN China Mobile Communicati 12479 6772 1730 150 UNI2-AS, ES 9121 6708 1692 17 TTNET, TR 16509 6358 10283 2729 AMAZON-02, US 7545 5917 789 696 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4490 298 690 CABLEONE, US 8551 4010 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 20940 3942 3360 199 AKAMAI-ASN1, NL 22773 3921 3050 352 ASN-CXA-ALL-CCI-22773-RDC, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9131 9090 CHINAMOBILE-CN China Mobile Communications Grou 9121 6708 6691 TTNET, TR 12479 6772 6622 UNI2-AS, ES 7545 5917 5221 TPG-INTERNET-AP TPG Telecom Limited, AU 8551 4010 3971 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7155 3901 3870 VIASAT-SP-BACKBONE, US 11492 4490 3800 CABLEONE, US 20940 3942 3743 AKAMAI-ASN1, NL 39891 3683 3651 ALJAWWALSTC-AS, SA 16509 6358 3629 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/RENU/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 65000 PRIVATE 5.227.24.0/22 8580 SANDY MTS Nizhniy Novgorod, 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 Complete listing at https://bgp.nsrc.org/REN/RENU/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US 198.51.100.0/24 29766 CHSPSC-29766, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-spar 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 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 41.57.124.0/22 Origin: 37442 UNASSIGNED 41.57.124.0/22 Transit: 37204 TELONE, ZW 41.57.124.0/23 Origin: 37442 UNASSIGNED 41.57.124.0/23 Transit: 37204 TELONE, ZW 41.57.124.0/24 Origin: 37442 UNASSIGNED 41.57.124.0/24 Transit: 37204 TELONE, ZW Complete listing at https://bgp.nsrc.org/REN/RENU/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 /12:304 /13:589 /14:1216 /15:2124 /16:13613 /17:8359 /18:14040 /19:25225 /20:43329 /21:52593 /22:109154 /23:99241 /24:543181 /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 9121 5865 6708 TTNET, TR 12479 5753 6772 UNI2-AS, ES 8151 4296 10580 Uninet S.A. de C.V., MX 8551 3476 4010 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 11492 3396 4490 CABLEONE, US 6327 3249 3436 SHAW, CA 39891 3003 3683 ALJAWWALSTC-AS, SA 7155 2991 3901 VIASAT-SP-BACKBONE, US 22773 2932 3921 ASN-CXA-ALL-CCI-22773-RDC, US 6849 2786 2941 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/RENU/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1933 2:1040 3:154 4:8 5:3926 6:104 7:5 8:1568 9:1 11:172 12:1710 13:301 14:2377 15:198 16:45 17:384 18:159 20:213 21:4 22:188 23:5666 24:2335 25:6 27:2657 29:19 31:2446 32:97 34:1 35:73 36:1784 37:4482 38:2816 39:701 40:163 41:4488 42:1092 43:2231 44:296 45:17047 46:4191 47:323 49:1697 50:2170 51:101 52:1421 54:365 55:736 56:8 57:66 58:1766 59:1123 60:959 61:2273 62:2601 63:1962 64:5542 65:2339 66:4954 67:3016 68:1221 69:4145 70:1336 71:681 72:3118 74:2672 75:1400 76:585 77:2296 78:3983 79:3117 80:2016 81:1766 82:1498 83:1216 84:1371 85:3702 86:713 87:2069 88:2738 89:3367 90:520 91:7728 92:2008 93:2604 94:3551 95:4790 96:1307 97:350 98:995 99:737 100:75 101:1277 102:2289 103:29265 104:4397 105:2049 106:873 107:2533 108:841 109:4233 110:2017 111:3232 112:2031 113:1505 114:1523 115:2097 116:1885 117:2521 118:2332 119:1841 120:1664 121:1043 122:2587 123:2142 124:1544 125:2084 128:1246 129:1169 130:984 131:2221 132:817 133:372 134:1905 135:296 136:886 137:869 138:2690 139:1507 140:856 141:1404 142:1297 143:1516 144:1213 145:344 146:1819 147:1492 148:2231 149:1729 150:861 151:1082 152:1861 153:540 154:3583 155:1419 156:1846 157:1235 158:1043 159:2162 160:2559 161:1266 162:3496 163:1286 164:1675 165:1645 166:711 167:1715 168:4055 169:869 170:4868 171:831 172:3150 173:3135 174:1024 175:1157 176:3554 177:5764 178:3532 179:2441 180:2283 181:3023 182:3218 183:1933 184:2385 185:19627 186:4744 187:4278 188:3978 189:3630 190:9004 191:1740 192:11053 193:8661 194:7052 195:5042 196:3182 197:2806 198:6027 199:6072 200:7861 201:5918 202:10301 203:10240 204:4571 205:3451 206:3827 207:3399 208:4066 209:4706 210:4122 211:2363 212:4069 213:3469 214:1152 215:67 216:6487 217:2771 218:1265 219:409 220:1944 221:981 222:670 223:2123 End of report