This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam'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 21:25 GMT Sat 03 Jan, 2026 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1041129 Prefixes after maximum aggregation (per Origin AS): 395185 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 506188 Number of IPv4 prefixes with a valid ROA: 616689 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 424421 Total ASes present in the Internet Routing Table: 77745 Prefixes per ASN: 13.39 Origin-only ASes present in the Internet Routing Table: 66566 Origin ASes announcing only one prefix: 27091 Transit ASes present in the Internet Routing Table: 11179 Transit-only ASes present in the Internet Routing Table: 568 Paths with bogon ASNs present in the IPv4 Routing Table: 76 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 935 Number of instances of unregistered ASNs: 984 Number of 32-bit ASNs allocated by the RIRs: 48311 Number of 32-bit ASNs visible in the Routing Table: 39571 Prefixes from 32-bit ASNs in the Routing Table: 222070 Number of bogon 32-bit ASNs visible in the Routing Table: 110 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 469 Number of addresses announced to Internet: 3109771173 Equivalent to 185 /8s, 91 /16s and 87 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 338576 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 287507 Total APNIC prefixes after maximum aggregation: 81700 APNIC Deaggregation factor: 3.52 Prefixes being announced from the APNIC address blocks: 274341 Unique aggregates announced from the APNIC address blocks: 106550 APNIC Region origin ASes present in the Internet Routing Table: 15002 APNIC Prefixes per ASN: 18.29 APNIC Region origin ASes announcing only one prefix: 4552 APNIC Region transit ASes present in the Internet Routing Table: 2018 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 41 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10539 Number of APNIC addresses announced to Internet: 758371136 Equivalent to 45 /8s, 51 /16s and 211 /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: 302955 Total ARIN prefixes after maximum aggregation: 134822 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 302866 Unique aggregates announced from the ARIN address blocks: 145672 ARIN Region origin ASes present in the Internet Routing Table: 19373 ARIN Prefixes per ASN: 15.63 ARIN Region origin ASes announcing only one prefix: 7076 ARIN Region transit ASes present in the Internet Routing Table: 1975 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5421 Number of ARIN addresses announced to Internet: 1342560768 Equivalent to 80 /8s, 5 /16s and 218 /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: 284626 Total RIPE prefixes after maximum aggregation: 140194 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 285699 Unique aggregates announced from the RIPE address blocks: 184403 RIPE Region origin ASes present in the Internet Routing Table: 29156 RIPE Prefixes per ASN: 9.80 RIPE Region origin ASes announcing only one prefix: 12083 RIPE Region transit ASes present in the Internet Routing Table: 4038 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12911 Number of RIPE addresses announced to Internet: 735242497 Equivalent to 43 /8s, 210 /16s and 233 /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: 128038 Total LACNIC prefixes after maximum aggregation: 30901 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 123757 Unique aggregates announced from the LACNIC address blocks: 49794 LACNIC Region origin ASes present in the Internet Routing Table: 11339 LACNIC Prefixes per ASN: 10.91 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2562 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9336 Number of LACNIC addresses announced to Internet: 170179424 Equivalent to 10 /8s, 36 /16s and 187 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 37068 Total AfriNIC prefixes after maximum aggregation: 6934 AfriNIC Deaggregation factor: 5.35 Prefixes being announced from the AfriNIC address blocks: 53996 Unique aggregates announced from the AfriNIC address blocks: 19410 AfriNIC Region origin ASes present in the Internet Routing Table: 2001 AfriNIC Prefixes per ASN: 26.98 AfriNIC Region origin ASes announcing only one prefix: 717 AfriNIC Region transit ASes present in the Internet Routing Table: 388 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1364 Number of AfriNIC addresses announced to Internet: 103149824 Equivalent to 6 /8s, 37 /16s and 241 /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 13555 9087 159 CHINAMOBILE-CN China Mobile Communication 7545 6030 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5022 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4656 542 336 BBIL-AP BHARTI Airtel Ltd., IN 45899 4407 1873 52 VNPT-AS-VN VNPT Corp, VN 18403 4340 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3731 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3542 852 238 CMNET-JIANGSU-AP China Mobile communicati 17561 3128 196 617 LCS-AS-AP LARUS Limited, HK Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14059 38463 5425 AMAZON-02, US 174 4767 8770 854 COGENT-174, US 22773 4748 3113 374 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4691 311 946 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3689 1320 82 SHAW, CA 396982 3316 4867 490 GOOGLE-CLOUD-PLATFORM, US 749 3143 54729 2394 DNIC-AS-00749, US 16625 2883 1239 2151 AKAMAI-AS, US 36352 2702 222 890 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7278 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3946 368 2269 M247, RO 20940 3863 3394 124 AKAMAI-ASN1, NL 12389 3184 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2566 182 1865 CDNEXT, GB 34984 2421 371 574 TELLCOM-AS, TR 8452 1708 1852 14 TE-AS TE-AS, EG 203020 1617 242 783 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12646 3293 593 UNINET, MX 10620 3433 457 1107 Telmex Colombia S.A., CO 13999 2488 506 351 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1370 2430 270 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1260 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR 18881 905 1127 31 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1982 638 33 RAYA-AS, EG 36992 1847 1534 341 ETISALAT-MISR, EG 24863 1265 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1109 523 46 Vodafone-, EG 37069 1099 1084 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 556 48 160 Africa-on-Cloud-AS, ZA 36914 553 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14059 38463 5425 AMAZON-02, US 9808 13555 9087 159 CHINAMOBILE-CN China Mobile Communication 8151 12646 3293 593 UNINET, MX 12479 7278 1711 149 UNI2-AS, ES 7545 6030 833 575 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5022 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4969 306 72 ALJAWWALSTC-AS, SA 174 4767 8770 854 COGENT-174, US 22773 4748 3113 374 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4691 311 946 CABLEONE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13555 13396 CHINAMOBILE-CN China Mobile Communications Grou 8151 12646 12053 UNINET, MX 12479 7278 7129 UNI2-AS, ES 7545 6030 5455 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 5022 4946 ERX-CERNET-BKB China Education and Research Net 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4748 4374 ASN-CXA-ALL-CCI-22773-RDC, US 45899 4407 4355 VNPT-AS-VN VNPT Corp, VN 9498 4656 4320 BBIL-AP BHARTI Airtel Ltd., IN 18403 4340 4316 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.2.3.8/30 21996 GUAMCELL, US 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /9:14 /10:41 /11:93 /12:300 /13:582 /14:1204 /15:2108 /16:13811 /17:8388 /18:14121 /19:25560 /20:46706 /21:53326 /22:114454 /23:108170 /24:651459 /25:145 /26:112 /27:113 /28:40 /29:66 /30:10 /31:3 /32:287 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6850 12646 UNINET, MX 12479 6209 7278 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3536 4691 CABLEONE, US 6327 3477 3689 SHAW, CA 22773 3054 4748 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2480 14059 AMAZON-02, US 30036 2305 2648 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3433 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2524 2:1536 3:980 4:12 5:5010 6:187 7:6 8:1543 9:14 11:172 12:1233 13:617 14:2691 15:418 16:275 17:389 18:913 20:600 21:4 22:188 23:8139 24:2678 25:2 27:2852 29:19 31:3398 32:35 33:1 34:85 35:290 36:4652 37:4536 38:11018 39:1226 40:438 41:4612 42:1927 43:3036 44:411 45:19818 46:5109 47:417 49:2189 50:2057 51:598 52:1254 54:229 55:1122 56:11 57:313 58:2395 59:1418 60:1175 61:3229 62:3138 63:1779 64:6131 65:2140 66:6025 67:3274 68:1507 69:4300 70:1024 71:625 72:3047 74:2968 75:1526 76:599 77:2757 78:1933 79:1800 80:2331 81:2115 82:3953 83:1474 84:2035 85:3674 86:1105 87:2371 88:1364 89:4635 90:835 91:8466 92:2827 93:3032 94:4338 95:4576 96:1483 97:312 98:957 99:789 100:68 101:1343 102:4457 103:32652 104:5467 105:1035 106:939 107:2817 108:1216 109:4306 110:2315 111:4072 112:2911 113:1987 114:2116 115:2341 116:2203 117:3267 118:3023 119:2197 120:2486 121:1581 122:2999 123:2457 124:1749 125:2993 126:125 128:1577 129:943 130:1560 131:2308 132:752 133:462 134:1638 135:540 136:1511 137:1224 138:3033 139:1671 140:1794 141:1566 142:2441 143:2128 144:1409 145:627 146:2190 147:2153 148:2784 149:2981 150:1329 151:2589 152:2249 153:918 154:9748 155:2316 156:4581 157:2266 158:1481 159:2730 160:3750 161:1998 162:4012 163:2343 164:1965 165:2652 166:1310 167:2203 168:3953 169:811 170:5526 171:1118 172:4528 173:3427 174:899 175:1375 176:3789 177:4899 178:4334 179:2357 180:2918 181:4491 182:3890 183:2682 184:2075 185:21784 186:5789 187:4853 188:4633 189:4548 190:9800 191:1585 192:11451 193:9515 194:7943 195:5752 196:3274 197:3281 198:6065 199:6106 200:8103 201:6469 202:11102 203:10890 204:4674 205:3707 206:4428 207:3829 208:4395 209:5457 210:5110 211:2862 212:4987 213:4061 214:1060 215:54 216:7162 217:3465 218:1687 219:622 220:2197 221:1302 222:1019 223:3266 End of report