Routing Table Report 00:00 GMT Tue 22 Nov, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 386100
Prefixes after maximum aggregation: 168235
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 188034
Total ASes present in the Internet Routing Table: 39365
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 32507
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5205
Transit-only ASes present in the Internet Routing Table: 128
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5631
Unregistered ASNs in the Routing Table: 911
Number of 32-bit ASNs allocated by the RIRs: 1972
Number of 32-bit ASNs visible in the Routing Table: 1653
Prefixes from 32-bit ASNs in the Routing Table: 3846
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2491938597
Equivalent to 148 /8s, 135 /16s and 247 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 162090
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93145
Total APNIC prefixes after maximum aggregation: 30088
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89645
Unique aggregates announced from the APNIC address blocks: 38546
APNIC Region origin ASes present in the Internet Routing Table: 4602
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1282
APNIC Region transit ASes present in the Internet Routing Table: 719
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 109
Number of APNIC addresses announced to Internet: 630206720
Equivalent to 37 /8s, 144 /16s and 49 /24s
Percentage of available APNIC address space announced: 79.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 148688
Total ARIN prefixes after maximum aggregation: 76651
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120647
Unique aggregates announced from the ARIN address blocks: 48587
ARIN Region origin ASes present in the Internet Routing Table: 14752
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5624
ARIN Region transit ASes present in the Internet Routing Table: 1520
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803302920
Equivalent to 47 /8s, 225 /16s and 110 /24s
Percentage of available ARIN address space announced: 63.8
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, 173/8,
174/8, 184/8, 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: 94648
Total RIPE prefixes after maximum aggregation: 51374
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 85964
Unique aggregates announced from the RIPE address blocks: 54463
RIPE Region origin ASes present in the Internet Routing Table: 16135
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 7981
RIPE Region transit ASes present in the Internet Routing Table: 2504
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1153
Number of RIPE addresses announced to Internet: 492825292
Equivalent to 29 /8s, 95 /16s and 234 /24s
Percentage of available RIPE address space announced: 79.4
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 36915
Total LACNIC prefixes after maximum aggregation: 7985
LACNIC Deaggregation factor: 4.62
Prefixes being announced from the LACNIC address blocks: 36298
Unique aggregates announced from the LACNIC address blocks: 18667
LACNIC Region origin ASes present in the Internet Routing Table: 1548
LACNIC Prefixes per ASN: 23.45
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 375
Number of LACNIC addresses announced to Internet: 93126920
Equivalent to 5 /8s, 141 /16s and 1 /24s
Percentage of available LACNIC address space announced: 61.7
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,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8650
Total AfriNIC prefixes after maximum aggregation: 2064
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6692
Unique aggregates announced from the AfriNIC address blocks: 2042
AfriNIC Region origin ASes present in the Internet Routing Table: 504
AfriNIC Prefixes per ASN: 13.28
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27779840
Equivalent to 1 /8s, 167 /16s and 227 /24s
Percentage of available AfriNIC address space announced: 41.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1954 11102 665 Korea Telecom (KIX)
17974 1642 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4755 1516 376 168 Videsh Sanchar Nigam Ltd. Aut
7552 1393 1064 7 Vietel Corporation
9829 1162 989 28 BSNL National Internet Backbo
9583 1094 80 494 Sify Limited
24560 965 343 218 Bharti Airtel Ltd.
18101 953 119 148 Reliance Infocom Ltd Internet
4808 923 1913 266 CNCGROUP IP network: China169
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3489 3814 220 bellsouth.net, inc.
7029 2906 1020 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1851 680 121 AppliedTheory Corporation
4323 1612 1094 389 Time Warner Telecom
20115 1597 1546 624 Charter Communications
22773 1501 2909 104 Cox Communications, Inc.
30036 1429 257 671 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1317 7063 864 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1605 416 14 Corbina telecom
286 1097 811 201 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 604 114 189 Tellcom Iletisim Hizmetleri
20940 561 185 440 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 533 2106 410 TDC Tele Danmark
3320 512 8168 389 Deutsche Telekom AG
12479 484 596 9 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1695 314 176 TVCABLE BOGOTA
28573 1499 1045 71 Types of queries are: POCs, o
8151 1492 2953 344 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 621 72 87 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
6503 566 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 546 429 25 Prima S.A.
3816 542 234 97 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 777 146 34 LINKdotNET AS number
8452 663 446 12 TEDATA
15475 455 74 8 Nile Online
36992 283 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 217 13 14 Starcomms Nigeria Limited
12258 197 28 58 YEBO-AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3489 3814 220 bellsouth.net, inc.
7029 2906 1020 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1954 11102 665 Korea Telecom (KIX)
1785 1851 680 121 AppliedTheory Corporation
10620 1695 314 176 TVCABLE BOGOTA
17974 1642 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4323 1612 1094 389 Time Warner Telecom
8402 1605 416 14 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2906 2707 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1851 1730 AppliedTheory Corporation
17974 1642 1606 PT TELEKOMUNIKASI INDONESIA
8402 1605 1591 Corbina telecom
7545 1624 1537 TPG Internet Pty Ltd
10620 1695 1519 TVCABLE BOGOTA
28573 1499 1428 Types of queries are: POCs, o
22773 1501 1397 Cox Communications, Inc.
7552 1393 1386 Vietel Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/rviews/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 /9:12 /10:27 /11:81 /12:236
/13:465 /14:812 /15:1458 /16:12162 /17:6336 /18:10409
/19:20544 /20:28842 /21:28250 /22:38304 /23:35999 /24:200412
/25:67 /26:85 /27:110 /28:285 /29:116 /30:527
/31:53 /32:488
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2537 2906 Windstream Communications Inc
6389 2130 3489 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1590 1695 TVCABLE BOGOTA
8402 1582 1605 Corbina telecom
30036 1389 1429 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1851 AppliedTheory Corporation
7011 1050 1167 Citizens Utilities
22773 961 1501 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:417 2:489 4:19 5:1 6:3 8:359
12:1954 13:1 14:554 15:11 16:3 17:7
20:9 23:70 24:1695 27:1028 31:713 32:120
33:2 34:2 36:4 38:767 39:1 40:109
41:2700 42:64 43:1 44:3 46:1064 47:3
49:295 50:457 52:13 55:7 56:2 57:59
58:932 59:486 60:360 61:1157 62:1105 63:1983
64:4095 65:2303 66:4365 67:2043 68:1351 69:3256
70:954 71:383 72:1849 73:1 74:2696 75:445
76:332 77:894 78:895 79:461 80:1141 81:844
82:527 83:527 84:632 85:1153 86:412 87:913
88:361 89:1614 90:235 91:4294 92:539 93:1445
94:1317 95:1125 96:432 97:285 98:768 99:37
101:243 103:505 106:1 107:95 108:81 109:1201
110:679 111:806 112:364 113:498 114:628 115:717
116:895 117:719 118:900 119:1252 120:321 121:690
122:1570 123:1027 124:1366 125:1352 128:298 129:187
130:178 131:633 132:155 133:21 134:230 135:54
136:211 137:146 138:285 139:133 140:490 141:250
142:387 143:406 144:498 145:65 146:476 147:228
148:686 149:268 150:164 151:192 152:448 153:172
154:7 155:390 156:208 157:359 158:156 159:496
160:333 161:214 162:371 163:175 164:518 165:385
166:540 167:445 168:826 169:147 170:823 171:87
172:4 173:1769 174:583 175:436 176:325 177:395
178:1127 180:1182 181:39 182:666 183:243 184:396
185:1 186:1419 187:776 188:984 189:1160 190:5209
192:5959 193:5069 194:3577 195:3131 196:1291 197:167
198:3627 199:4226 200:5531 201:1710 202:8566 203:8554
204:4308 205:2394 206:2686 207:2831 208:4034 209:3607
210:2741 211:1460 212:2057 213:1818 214:803 215:96
216:4954 217:1611 218:570 219:341 220:1258 221:509
222:327 223:281
End of report
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