[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat Apr 5 20:17:04 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Sat 05 Apr, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 265471
Prefixes after maximum aggregation (per Origin AS): 116123
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 138173
Number of IPv4 prefixes with a valid ROA: 119310
Number of IPv4 prefixes with an invalid ROA: 17
Number of IPv4 prefixes with no ROA: 146144
Total ASes present in the Internet Routing Table: 20442
Prefixes per ASN: 12.99
Origin-only ASes present in the Internet Routing Table: 17611
Origin ASes announcing only one prefix: 7875
Transit ASes present in the Internet Routing Table: 2831
Transit-only ASes present in the Internet Routing Table: 749
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 273
Number of instances of unregistered ASNs: 274
Number of 32-bit ASNs allocated by the RIRs: 46163
Number of 32-bit ASNs visible in the Routing Table: 7973
Prefixes from 32-bit ASNs in the Routing Table: 30318
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 1558793949
Equivalent to 92 /8s, 233 /16s and 78 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 84861
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31950
Total APNIC prefixes after maximum aggregation: 7538
APNIC Deaggregation factor: 4.24
Prefixes being announced from the APNIC address blocks: 30683
Unique aggregates announced from the APNIC address blocks: 8063
APNIC Region origin ASes present in the Internet Routing Table: 1217
APNIC Prefixes per ASN: 25.21
APNIC Region origin ASes announcing only one prefix: 487
APNIC Region transit ASes present in the Internet Routing Table: 207
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 559
Number of APNIC addresses announced to Internet: 168838252
Equivalent to 10 /8s, 16 /16s and 68 /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: 125123
Total ARIN prefixes after maximum aggregation: 64225
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122552
Unique aggregates announced from the ARIN address blocks: 65839
ARIN Region origin ASes present in the Internet Routing Table: 9371
ARIN Prefixes per ASN: 13.08
ARIN Region origin ASes announcing only one prefix: 3900
ARIN Region transit ASes present in the Internet Routing Table: 875
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2171
Number of ARIN addresses announced to Internet: 965615073
Equivalent to 57 /8s, 142 /16s and 29 /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: 49915
Total RIPE prefixes after maximum aggregation: 27410
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 51664
Unique aggregates announced from the RIPE address blocks: 38194
RIPE Region origin ASes present in the Internet Routing Table: 4676
RIPE Prefixes per ASN: 11.05
RIPE Region origin ASes announcing only one prefix: 1960
RIPE Region transit ASes present in the Internet Routing Table: 704
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1929
Number of RIPE addresses announced to Internet: 282110800
Equivalent to 16 /8s, 208 /16s and 171 /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: 47658
Total LACNIC prefixes after maximum aggregation: 14506
LACNIC Deaggregation factor: 3.29
Prefixes being announced from the LACNIC address blocks: 46500
Unique aggregates announced from the LACNIC address blocks: 21725
LACNIC Region origin ASes present in the Internet Routing Table: 4029
LACNIC Prefixes per ASN: 11.54
LACNIC Region origin ASes announcing only one prefix: 1419
LACNIC Region transit ASes present in the Internet Routing Table: 823
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3160
Number of LACNIC addresses announced to Internet: 98697792
Equivalent to 5 /8s, 226 /16s and 2 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 10552
Total AfriNIC prefixes after maximum aggregation: 2239
AfriNIC Deaggregation factor: 4.71
Prefixes being announced from the AfriNIC address blocks: 13951
Unique aggregates announced from the AfriNIC address blocks: 4236
AfriNIC Region origin ASes present in the Internet Routing Table: 278
AfriNIC Prefixes per ASN: 50.18
AfriNIC Region origin ASes announcing only one prefix: 109
AfriNIC Region transit ASes present in the Internet Routing Table: 77
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 154
Number of AfriNIC addresses announced to Internet: 43481344
Equivalent to 2 /8s, 151 /16s and 121 /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 10125 8753 88 CHINAMOBILE-CN China Mobile Communication
56046 1584 811 187 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1480 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
17561 520 33 220 LCS-AS-AP LARUS Limited, HK
24445 520 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
45102 475 762 134 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13002 39641 3943 AMAZON-02, US
22773 3397 3017 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2596 195 1583 USDA-1, US
367 2455 2886 1186 DNIC-ASBLK-00306-00371, US
36352 2385 198 1064 AS-COLOCROSSING, US
7018 2214 22907 1579 ATT-INTERNET4, US
11776 1892 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1830 3621 458 CELLCO-PART, US
209 1670 4890 277 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1263 100 1019 AKAMAI-ASN1, NL
3215 926 4886 285 France Telecom - Orange, FR
3257 926 2075 747 GTT-BACKBONE GTT, US
25019 846 1299 129 SAUDINETSTC-AS, SA
34984 638 71 460 TELLCOM-AS, TR
8452 611 1842 17 TE-AS TE-AS, EG
203214 585 43 354 HULUMTELE, IQ
8376 570 53 25 Jordan Data Communications, JO
51167 567 113 250 CONTABO, DE
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7347 2020 1002 UNINET, MX
11830 1991 369 64 Instituto Costarricense de Electricidad y
10620 1876 282 1276 Telmex Colombia S.A., CO
3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1193 371 22 Telefonica del Peru S.A.A., PE
26615 988 2503 53 TIM SA, BR
18881 882 1127 31 TELEFONICA BRASIL S.A, BR
27651 656 95 43 ENTEL CHILE S.A., CL
28006 643 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 545 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1469 389 16 LINKdotNET-AS, EG
29571 1211 101 69 ORANGE-COTE-IVOIRE, CI
20011 981 185 285 INTERNET-SOLUTIONS, ZA
24835 805 504 37 RAYA-AS, EG
36935 687 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 548 82 3 KENET-AS, KE
37069 456 1030 15 MOBINIL, EG
36903 417 195 306 MT-MPLS, MA
2018 372 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13002 39641 3943 AMAZON-02, US
9808 10125 8753 88 CHINAMOBILE-CN China Mobile Communication
8151 7347 2020 1002 UNINET, MX
22773 3397 3017 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2596 195 1583 USDA-1, US
367 2455 2886 1186 DNIC-ASBLK-00306-00371, US
36352 2385 198 1064 AS-COLOCROSSING, US
7018 2214 22907 1579 ATT-INTERNET4, US
11830 1991 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10125 10037 CHINAMOBILE-CN China Mobile Communications Grou
8151 7347 6345 UNINET, MX
22773 3397 3217 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1991 1927 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1892 1676 ATLANTICBB-JOHNSTOWN, US
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1469 1453 LINKdotNET-AS, EG
56047 1480 1427 CMNET-HUNAN-AP China Mobile communications corp
56046 1584 1397 CMNET-JIANGSU-AP China Mobile communications co
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
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
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:42 /12:151
/13:216 /14:577 /15:1100 /16:7585 /17:3444 /18:4209
/19:7773 /20:12415 /21:15554 /22:28058 /23:27806 /24:156273
/25:61 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3867 7347 UNINET, MX
22773 2536 3397 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2337 13002 AMAZON-02, US
11830 1692 1991 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
10620 1036 1876 Telmex Colombia S.A., CO
36352 973 2385 AS-COLOCROSSING, US
209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US
19901 943 1193 BRSPD-PUBLIC, US
11776 881 1892 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:65 2:483 3:610 4:5 5:838 6:149
7:5 8:637 11:171 12:996 13:295 14:137
15:301 16:241 17:5 18:886 20:161 21:4
22:188 23:2495 24:774 27:26 29:19 31:539
32:18 34:10 35:133 36:1228 37:1083 38:2107
39:543 40:54 41:961 42:221 43:199 44:33
45:4018 46:944 47:83 49:52 50:359 51:380
52:1383 54:276 55:878 56:11 57:18 58:45
59:27 60:16 61:74 62:554 63:775 64:1908
65:1083 66:1582 67:996 68:424 69:1191 70:428
71:212 72:756 74:984 75:436 76:247 77:460
78:337 79:274 80:304 81:350 82:764 83:234
84:362 85:496 86:235 87:253 88:289 89:850
90:105 91:1007 92:695 93:454 94:957 95:736
96:310 97:64 98:474 99:160 100:35 101:24
102:430 103:1228 104:1474 105:135 106:58 107:1504
108:537 109:411 110:57 111:1907 112:463 113:40
114:59 115:16 116:56 117:1039 118:167 119:130
120:1163 121:42 122:130 123:153 124:57 125:25
128:473 129:284 130:660 131:935 132:564 133:213
134:483 135:117 136:581 137:496 138:973 139:434
140:715 141:442 142:969 143:675 144:420 145:109
146:685 147:479 148:860 149:771 150:375 151:635
152:510 153:127 154:1528 155:812 156:1257 157:368
158:511 159:731 160:944 161:708 162:993 163:351
164:724 165:820 166:747 167:640 168:1194 169:152
170:1634 171:120 172:1405 173:816 174:253 175:51
176:535 177:1055 178:527 179:733 180:50 181:1762
182:29 183:855 184:502 185:3467 186:2140 187:1459
188:802 189:1785 190:4393 191:430 192:5156 193:1851
194:1254 195:947 196:794 197:1548 198:2704 199:4894
200:3682 201:3350 202:984 203:720 204:2169 205:1963
206:1549 207:1509 208:1360 209:1997 210:309 211:431
212:1089 213:875 214:1000 215:42 216:2509 217:428
218:522 219:19 220:20 221:301 222:32 223:727
End of report
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