[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 10 19:17:40 UTC 2012
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 11 Aug, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 421995
Prefixes after maximum aggregation: 177266
Deaggregation factor: 2.38
Unique aggregates announced to Internet: 203973
Total ASes present in the Internet Routing Table: 41767
Prefixes per ASN: 10.10
Origin-only ASes present in the Internet Routing Table: 33429
Origin ASes announcing only one prefix: 15691
Transit ASes present in the Internet Routing Table: 5606
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 32
Max AS path prepend of ASN ( 48687) 24
Prefixes from unregistered ASNs in the Routing Table: 395
Unregistered ASNs in the Routing Table: 152
Number of 32-bit ASNs allocated by the RIRs: 3098
Number of 32-bit ASNs visible in the Routing Table: 2732
Prefixes from 32-bit ASNs in the Routing Table: 7043
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 166
Number of addresses announced to Internet: 2587319180
Equivalent to 154 /8s, 55 /16s and 91 /24s
Percentage of available address space announced: 69.8
Percentage of allocated address space announced: 69.9
Percentage of available address space allocated: 99.9
Percentage of address space in use by end-sites: 93.1
Total number of prefixes smaller than registry allocations: 148463
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 102079
Total APNIC prefixes after maximum aggregation: 32807
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 102621
Unique aggregates announced from the APNIC address blocks: 42212
APNIC Region origin ASes present in the Internet Routing Table: 4729
APNIC Prefixes per ASN: 21.70
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 758
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 278
Number of APNIC addresses announced to Internet: 707702656
Equivalent to 42 /8s, 46 /16s and 175 /24s
Percentage of available APNIC address space announced: 82.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 153645
Total ARIN prefixes after maximum aggregation: 77905
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 154656
Unique aggregates announced from the ARIN address blocks: 68753
ARIN Region origin ASes present in the Internet Routing Table: 15216
ARIN Prefixes per ASN: 10.16
ARIN Region origin ASes announcing only one prefix: 5757
ARIN Region transit ASes present in the Internet Routing Table: 1609
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 1083911296
Equivalent to 64 /8s, 155 /16s and 44 /24s
Percentage of available ARIN address space announced: 57.3
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, 393216-394239
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,
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: 106315
Total RIPE prefixes after maximum aggregation: 55910
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 108543
Unique aggregates announced from the RIPE address blocks: 67395
RIPE Region origin ASes present in the Internet Routing Table: 16740
RIPE Prefixes per ASN: 6.48
RIPE Region origin ASes announcing only one prefix: 8104
RIPE Region transit ASes present in the Internet Routing Table: 2711
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1782
Number of RIPE addresses announced to Internet: 640497636
Equivalent to 38 /8s, 45 /16s and 55 /24s
Percentage of available RIPE address space announced: 93.1
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, 196608-199679
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: 43121
Total LACNIC prefixes after maximum aggregation: 8394
LACNIC Deaggregation factor: 5.14
Prefixes being announced from the LACNIC address blocks: 45908
Unique aggregates announced from the LACNIC address blocks: 22058
LACNIC Region origin ASes present in the Internet Routing Table: 1622
LACNIC Prefixes per ASN: 28.30
LACNIC Region origin ASes announcing only one prefix: 418
LACNIC Region transit ASes present in the Internet Routing Table: 318
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 649
Number of LACNIC addresses announced to Internet: 113366696
Equivalent to 6 /8s, 193 /16s and 214 /24s
Percentage of available LACNIC address space announced: 67.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus 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: 9651
Total AfriNIC prefixes after maximum aggregation: 2196
AfriNIC Deaggregation factor: 4.39
Prefixes being announced from the AfriNIC address blocks: 10101
Unique aggregates announced from the AfriNIC address blocks: 3417
AfriNIC Region origin ASes present in the Internet Routing Table: 559
AfriNIC Prefixes per ASN: 18.07
AfriNIC Region origin ASes announcing only one prefix: 174
AfriNIC Region transit ASes present in the Internet Routing Table: 124
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 41530624
Equivalent to 2 /8s, 121 /16s and 181 /24s
Percentage of available AfriNIC address space announced: 41.3
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
4766 2763 11117 1250 Korea Telecom (KIX)
17974 2323 702 54 PT TELEKOMUNIKASI INDONESIA
7545 1714 301 87 TPG Internet Pty Ltd
4755 1605 386 158 TATA Communications formerly
9829 1310 1084 31 BSNL National Internet Backbo
9583 1206 90 534 Sify Limited
7552 1128 1062 11 Vietel Corporation
4808 1123 2050 321 CNCGROUP IP network: China169
24560 1039 385 165 Bharti Airtel Ltd., Telemedia
9498 997 294 74 BHARTI Airtel Ltd.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3439 986 155 Windstream Communications Inc
6389 3339 3772 191 bellsouth.net, inc.
18566 2089 382 181 Covad Communications
1785 1936 680 128 PaeTec Communications, Inc.
22773 1700 2914 125 Cox Communications, Inc.
20115 1645 1572 611 Charter Communications
4323 1577 1027 386 Time Warner Telecom
30036 1433 279 784 Mediacom Communications Corp
7018 1245 10041 815 AT&T WorldNet Services
11492 1191 216 351 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1494 544 16 Corbina telecom
15557 1215 2247 55 LDCOM NETWORKS
12479 824 762 86 Uni2 Autonomous System
34984 744 189 177 BILISIM TELEKOM
20940 715 232 556 Akamai Technologies European
6830 714 2310 445 UPC Distribution Services
31148 699 37 9 FreeNet ISP
2118 685 97 14 EUnet/RELCOM Autonomous Syste
13188 669 100 9 Educational Network
58113 627 70 373 LIR DATACENTER TELECOM SRL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 2082 354 221 TVCABLE BOGOTA
28573 2043 1232 55 NET Servicos de Comunicao S.A
7303 1560 1032 202 Telecom Argentina Stet-France
6503 1528 419 67 AVANTEL, S.A.
8151 1464 3044 346 UniNet S.A. de C.V.
6458 882 81 15 GUATEL
27947 715 74 95 Telconet S.A
11172 644 91 74 Servicios Alestra S.A de C.V
3816 598 253 95 Empresa Nacional de Telecomun
22047 580 326 15 VTR PUNTO NET S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 922 958 13 TEDATA
24863 865 274 33 LINKdotNET AS number
36998 532 48 3 MOBITEL
6713 515 650 19 Itissalat Al-MAGHRIB
24835 286 80 8 RAYA Telecom - Egypt
3741 263 905 224 The Internet Solution
33776 219 12 19 Starcomms Nigeria Limited
12258 195 28 62 Vodacom Internet Company
29975 191 667 21 Vodacom
15706 179 32 6 Sudatel Internet Exchange Aut
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3439 986 155 Windstream Communications Inc
6389 3339 3772 191 bellsouth.net, inc.
4766 2763 11117 1250 Korea Telecom (KIX)
17974 2323 702 54 PT TELEKOMUNIKASI INDONESIA
18566 2089 382 181 Covad Communications
10620 2082 354 221 TVCABLE BOGOTA
28573 2043 1232 55 NET Servicos de Comunicao S.A
1785 1936 680 128 PaeTec Communications, Inc.
7545 1714 301 87 TPG Internet Pty Ltd
22773 1700 2914 125 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3339 3148 bellsouth.net, inc.
17974 2323 2269 PT TELEKOMUNIKASI INDONESIA
28573 2043 1988 NET Servicos de Comunicao S.A
18566 2089 1908 Covad Communications
10620 2082 1861 TVCABLE BOGOTA
1785 1936 1808 PaeTec Communications, Inc.
7545 1714 1627 TPG Internet Pty Ltd
22773 1700 1575 Cox Communications, Inc.
4766 2763 1513 Korea Telecom (KIX)
8402 1494 1478 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
59414 UNALLOCATED 5.102.144.0/21 15576 Nextra backbone in D
59395 UNALLOCATED 5.133.16.0/21 12658 Dexterity Networks L
59407 UNALLOCATED 5.134.16.0/21 51167 Giga-Hosting GmbH
59457 UNALLOCATED 5.149.64.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.65.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.66.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.67.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.71.0/24 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.74.0/23 35567 DASTO semtel d.o.o.
59457 UNALLOCATED 5.149.94.0/24 35567 DASTO semtel d.o.o.
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.187.48.0/21 23456 32-bit ASN transition
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
27.112.114.0/24 23884 Proimage Engineering and Comm
Complete listing at http://thyme.rand.apnic.net/current/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 /8:20 /9:14 /10:29 /11:84 /12:237
/13:474 /14:848 /15:1529 /16:12363 /17:6386 /18:10758
/19:20942 /20:30083 /21:31951 /22:41795 /23:39771 /24:220800
/25:1275 /26:1504 /27:861 /28:167 /29:62 /30:18
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2802 3439 Windstream Communications Inc
18566 2039 2089 Covad Communications
6389 1833 3339 bellsouth.net, inc.
30036 1369 1433 Mediacom Communications Corp
8402 1227 1494 Corbina telecom
15557 1159 1215 LDCOM NETWORKS
11492 1154 1191 Cable One
22773 1124 1700 Cox Communications, Inc.
6503 1051 1528 AVANTEL, S.A.
1785 1038 1936 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:546 2:721 3:1 4:13 5:337 6:3
8:439 12:2013 13:1 14:637 15:11 16:3
17:6 20:24 23:202 24:1804 27:1332 31:1018
32:56 33:2 34:2 36:8 37:727 38:815
39:1 40:134 41:2882 42:156 44:3 46:1557
47:2 49:432 50:584 52:13 54:14 55:4
57:31 58:988 59:515 60:238 61:1289 62:984
63:2022 64:4242 65:2245 66:4534 67:2055 68:1155
69:3206 70:989 71:518 72:1869 74:2609 75:489
76:331 77:952 78:895 79:502 80:1280 81:955
82:637 83:540 84:620 85:1118 86:797 87:935
88:337 89:1804 90:305 91:5093 92:590 93:1460
94:1586 95:1262 96:409 97:317 98:900 99:39
100:22 101:255 103:1369 105:512 106:112 107:193
108:420 109:1913 110:791 111:950 112:435 113:670
114:653 115:841 116:921 117:730 118:945 119:1231
120:361 121:696 122:1655 123:1168 124:1350 125:1265
128:521 129:183 130:267 131:634 132:298 133:22
134:246 135:61 136:215 137:239 138:347 139:184
140:498 141:267 142:450 143:380 144:494 145:78
146:512 147:295 148:770 149:319 150:153 151:186
152:455 153:175 154:20 155:405 156:222 157:381
158:189 159:632 160:346 161:409 162:391 163:188
164:682 165:410 166:572 167:529 168:960 169:126
170:909 171:149 172:5 173:1735 174:634 175:434
176:594 177:979 178:1681 180:1336 181:119 182:1032
183:233 184:575 186:2086 187:1121 188:1423 189:1579
190:6134 192:6018 193:5452 194:4233 195:3263 196:1230
197:199 198:3695 199:4905 200:6018 201:1968 202:8688
203:8664 204:4397 205:2531 206:2812 207:2799 208:4046
209:3633 210:2775 211:1561 212:2014 213:1802 214:875
215:86 216:5101 217:1565 218:562 219:315 220:1240
221:573 222:335 223:373
End of report
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