Routing Table Report 00:00 GMT Sat 14 Apr, 2012
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: 409834
Prefixes after maximum aggregation: 173704
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 197038
Total ASes present in the Internet Routing Table: 40751
Prefixes per ASN: 10.06
Origin-only ASes present in the Internet Routing Table: 33061
Origin ASes announcing only one prefix: 15638
Transit ASes present in the Internet Routing Table: 5461
Transit-only ASes present in the Internet Routing Table: 144
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 6037
Unregistered ASNs in the Routing Table: 159
Number of 32-bit ASNs allocated by the RIRs: 2561
Number of 32-bit ASNs visible in the Routing Table: 2229
Prefixes from 32-bit ASNs in the Routing Table: 5571
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2537252949
Equivalent to 151 /8s, 59 /16s and 104 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 68.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 173413
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97582
Total APNIC prefixes after maximum aggregation: 31149
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 94117
Unique aggregates announced from the APNIC address blocks: 39524
APNIC Region origin ASes present in the Internet Routing Table: 4661
APNIC Prefixes per ASN: 20.19
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 750
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 182
Number of APNIC addresses announced to Internet: 643275776
Equivalent to 38 /8s, 87 /16s and 156 /24s
Percentage of available APNIC address space announced: 81.6
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: 152548
Total ARIN prefixes after maximum aggregation: 78371
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123594
Unique aggregates announced from the ARIN address blocks: 50270
ARIN Region origin ASes present in the Internet Routing Table: 15055
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5726
ARIN Region transit ASes present in the Internet Routing Table: 1571
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 807229952
Equivalent to 48 /8s, 29 /16s and 90 /24s
Percentage of available ARIN address space announced: 64.2
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: 103374
Total RIPE prefixes after maximum aggregation: 53741
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 94455
Unique aggregates announced from the RIPE address blocks: 58075
RIPE Region origin ASes present in the Internet Routing Table: 16502
RIPE Prefixes per ASN: 5.72
RIPE Region origin ASes announcing only one prefix: 8051
RIPE Region transit ASes present in the Internet Routing Table: 2632
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1500
Number of RIPE addresses announced to Internet: 509452684
Equivalent to 30 /8s, 93 /16s and 161 /24s
Percentage of available RIPE address space announced: 82.1
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
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: 41187
Total LACNIC prefixes after maximum aggregation: 8222
LACNIC Deaggregation factor: 5.01
Prefixes being announced from the LACNIC address blocks: 41007
Unique aggregates announced from the LACNIC address blocks: 20102
LACNIC Region origin ASes present in the Internet Routing Table: 1583
LACNIC Prefixes per ASN: 25.90
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 296
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 525
Number of LACNIC addresses announced to Internet: 99331080
Equivalent to 5 /8s, 235 /16s and 172 /24s
Percentage of available LACNIC address space announced: 65.8
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: 9329
Total AfriNIC prefixes after maximum aggregation: 2152
AfriNIC Deaggregation factor: 4.34
Prefixes being announced from the AfriNIC address blocks: 7370
Unique aggregates announced from the AfriNIC address blocks: 2167
AfriNIC Region origin ASes present in the Internet Routing Table: 538
AfriNIC Prefixes per ASN: 13.70
AfriNIC Region origin ASes announcing only one prefix: 169
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31684352
Equivalent to 1 /8s, 227 /16s and 119 /24s
Percentage of available AfriNIC address space announced: 47.2
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 1922 11108 694 Korea Telecom (KIX)
17974 1803 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1658 301 88 TPG Internet Pty Ltd
4755 1590 388 166 Videsh Sanchar Nigam Ltd. Aut
9583 1243 94 540 Sify Limited
9829 1235 1041 30 BSNL National Internet Backbo
7552 1170 1062 11 Vietel Corporation
24560 1023 385 167 Bharti Airtel Ltd.
4808 993 1942 286 CNCGROUP IP network: China169
18101 947 131 160 Reliance Infocom Ltd Internet
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 3428 3807 195 bellsouth.net, inc.
7029 3421 1015 166 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1898 680 130 AppliedTheory Corporation
20115 1643 1565 619 Charter Communications
4323 1594 1044 378 Time Warner Telecom
22773 1576 2910 111 Cox Communications, Inc.
30036 1446 263 757 Mediacom Communications Corp
7018 1285 9791 834 AT&T WorldNet Services
11492 1185 216 365 Cable One
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 1657 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
286 1066 853 199 KPNQwest Backbone AS
34984 681 188 175 Tellcom Iletisim Hizmetleri
31148 679 37 9 FreeNet ISP
12479 656 660 61 Uni2 Autonomous System
6830 640 1943 411 UPC Distribution Services
20940 629 203 494 Akamai Technologies European
8551 576 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1803 326 174 TVCABLE BOGOTA
28573 1776 1107 59 Types of queries are: POCs, o
6503 1544 418 67 AVANTEL, S.A.
8151 1517 3001 323 Uninet S.A. de C.V.
7303 1357 827 190 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 687 74 99 Telconet S.A
11172 638 91 73 Alestra
22047 583 326 15 Types of queries are: POCs, o
3816 575 242 100 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
8452 1304 958 13 TEDATA
24863 846 274 33 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
16284 331 4 11 GST-N Autonomous System
3741 265 921 223 The Internet Solution
33776 208 12 21 Starcomms Nigeria Limited
12258 197 28 62 YEBO-AS
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 163 666 86 Johnnic e-Ventures
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 3428 3807 195 bellsouth.net, inc.
7029 3421 1015 166 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1922 11108 694 Korea Telecom (KIX)
1785 1898 680 130 AppliedTheory Corporation
10620 1803 326 174 TVCABLE BOGOTA
17974 1803 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1776 1107 59 Types of queries are: POCs, o
7545 1658 301 88 TPG Internet Pty Ltd
8402 1657 544 16 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 3421 3255 Windstream Communications Inc
18566 2091 1912 Covad Communications
1785 1898 1768 AppliedTheory Corporation
17974 1803 1740 PT TELEKOMUNIKASI INDONESIA
28573 1776 1717 Types of queries are: POCs, o
8402 1657 1641 Corbina telecom
10620 1803 1629 TVCABLE BOGOTA
7545 1658 1570 TPG Internet Pty Ltd
6503 1544 1477 AVANTEL, S.A.
22773 1576 1465 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 8.10.2.0/24 3257 Tiscali Intl Network
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
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 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 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
10.29.245.1/32 286 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
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
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
37.230.96.0/21 35470 XL Network
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 /8:19 /9:12 /10:28 /11:81 /12:235
/13:460 /14:838 /15:1520 /16:12357 /17:6542 /18:10896
/19:21183 /20:30044 /21:30289 /22:40973 /23:38322 /24:214177
/25:70 /26:76 /27:111 /28:280 /29:194 /30:635
/31:20 /32:472
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3064 3421 Windstream Communications Inc
6389 2146 3428 bellsouth.net, inc.
18566 2040 2091 Covad Communications
10620 1695 1803 TVCABLE BOGOTA
8402 1634 1657 Corbina telecom
30036 1392 1446 Mediacom Communications Corp
6503 1300 1544 AVANTEL, S.A.
11492 1148 1185 Cable One
8452 1112 1304 TEDATA
1785 1069 1898 AppliedTheory Corporation
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:536 2:638 4:18 6:3 8:401 12:1994
13:1 14:606 15:12 16:3 17:7 20:8
23:158 24:1777 27:1270 31:1006 32:119 33:2
34:2 36:8 37:344 38:798 39:4 40:120
41:3173 42:134 44:3 46:1471 47:3 49:388
50:538 52:13 54:7 55:9 56:3 57:39
58:966 59:518 60:281 61:1277 62:992 63:2007
64:4184 65:2255 66:4521 67:2051 68:1334 69:3266
70:954 71:473 72:1850 73:1 74:2649 75:509
76:330 77:966 78:1008 79:504 80:1210 81:909
82:674 83:550 84:502 85:1212 86:431 87:931
88:354 89:1647 90:297 91:4742 92:525 93:1386
94:1477 95:1152 96:363 97:319 98:907 99:37
100:7 101:173 103:979 106:105 107:185 108:228
109:1311 110:767 111:920 112:455 113:594 114:629
115:871 116:905 117:725 118:916 119:1224 120:355
121:830 122:1673 123:1095 124:1376 125:1266 128:564
129:194 130:255 131:600 132:173 133:21 134:247
135:62 136:212 137:177 138:355 139:159 140:489
141:244 142:389 143:399 144:520 145:69 146:492
147:287 148:801 149:301 150:160 151:176 152:464
153:172 154:8 155:446 156:215 157:381 158:177
159:523 160:343 161:259 162:352 163:190 164:572
165:413 166:571 167:464 168:817 169:128 170:856
171:127 172:4 173:1745 174:591 175:442 176:484
177:667 178:1336 180:1205 181:73 182:803 183:285
184:454 185:1 186:2209 187:1033 188:1191 189:1798
190:5545 192:6028 193:5573 194:4666 195:3626 196:1297
197:126 198:3648 199:4503 200:5813 201:1928 202:8531
203:8642 204:4351 205:2496 206:2775 207:2818 208:4073
209:3618 210:2787 211:1490 212:2048 213:1915 214:892
215:109 216:5107 217:1543 218:547 219:358 220:1233
221:557 222:329 223:334
End of report
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