Routing Table Report 00:00 GMT Thu 19 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: 412803
Prefixes after maximum aggregation: 174107
Deaggregation factor: 2.37
Unique aggregates announced to Internet: 190603
Total ASes present in the Internet Routing Table: 40816
Prefixes per ASN: 10.11
Origin-only ASes present in the Internet Routing Table: 33070
Origin ASes announcing only one prefix: 15651
Transit ASes present in the Internet Routing Table: 5501
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 5.1
Max AS path length visible: 30
Max AS path prepend of ASN (19202) 25
Prefixes from unregistered ASNs in the Routing Table: 6134
Unregistered ASNs in the Routing Table: 172
Number of 32-bit ASNs allocated by the RIRs: 2595
Number of 32-bit ASNs visible in the Routing Table: 2245
Prefixes from 32-bit ASNs in the Routing Table: 5621
Special use prefixes present in the Routing Table: 86
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2360015196
Equivalent to 140 /8s, 170 /16s and 249 /24s
Percentage of available address space announced: 63.7
Percentage of allocated address space announced: 63.7
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: 175660
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 97817
Total APNIC prefixes after maximum aggregation: 31216
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 94370
Unique aggregates announced from the APNIC address blocks: 38064
APNIC Region origin ASes present in the Internet Routing Table: 4669
APNIC Prefixes per ASN: 20.21
APNIC Region origin ASes announcing only one prefix: 1251
APNIC Region transit ASes present in the Internet Routing Table: 750
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 185
Number of APNIC addresses announced to Internet: 626571528
Equivalent to 37 /8s, 88 /16s and 185 /24s
Percentage of available APNIC address space announced: 79.5
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: 152971
Total ARIN prefixes after maximum aggregation: 78469
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 123953
Unique aggregates announced from the ARIN address blocks: 47167
ARIN Region origin ASes present in the Internet Routing Table: 15080
ARIN Prefixes per ASN: 8.22
ARIN Region origin ASes announcing only one prefix: 5741
ARIN Region transit ASes present in the Internet Routing Table: 1589
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 17
Number of ARIN addresses announced to Internet: 668587520
Equivalent to 39 /8s, 217 /16s and 214 /24s
Percentage of available ARIN address space announced: 53.1
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: 105131
Total RIPE prefixes after maximum aggregation: 53904
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 96146
Unique aggregates announced from the RIPE address blocks: 56082
RIPE Region origin ASes present in the Internet Routing Table: 16521
RIPE Prefixes per ASN: 5.82
RIPE Region origin ASes announcing only one prefix: 8051
RIPE Region transit ASes present in the Internet Routing Table: 2640
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1511
Number of RIPE addresses announced to Internet: 487370380
Equivalent to 29 /8s, 12 /16s and 174 /24s
Percentage of available RIPE address space announced: 78.5
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: 41354
Total LACNIC prefixes after maximum aggregation: 8299
LACNIC Deaggregation factor: 4.98
Prefixes being announced from the LACNIC address blocks: 41146
Unique aggregates announced from the LACNIC address blocks: 20113
LACNIC Region origin ASes present in the Internet Routing Table: 1586
LACNIC Prefixes per ASN: 25.94
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 302
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 527
Number of LACNIC addresses announced to Internet: 99370760
Equivalent to 5 /8s, 236 /16s and 71 /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: 9621
Total AfriNIC prefixes after maximum aggregation: 2150
AfriNIC Deaggregation factor: 4.47
Prefixes being announced from the AfriNIC address blocks: 7664
Unique aggregates announced from the AfriNIC address blocks: 2180
AfriNIC Region origin ASes present in the Internet Routing Table: 537
AfriNIC Prefixes per ASN: 14.27
AfriNIC Region origin ASes announcing only one prefix: 168
AfriNIC Region transit ASes present in the Internet Routing Table: 121
Average AfriNIC Region AS path length visible: 5.0
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: 31695616
Equivalent to 1 /8s, 227 /16s and 163 /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 1921 11105 693 Korea Telecom (KIX)
17974 1802 503 63 PT TELEKOMUNIKASI INDONESIA
7545 1673 301 89 TPG Internet Pty Ltd
4755 1591 388 166 Videsh Sanchar Nigam Ltd. Aut
9829 1253 1069 30 BSNL National Internet Backbo
9583 1243 94 540 Sify Limited
7552 1171 1062 11 Vietel Corporation
24560 1024 385 165 Bharti Airtel Ltd.
18101 947 131 160 Reliance Infocom Ltd Internet
9498 942 260 64 BHARTI Airtel Ltd.
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 3387 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
1785 1897 680 129 AppliedTheory Corporation
20115 1643 1565 620 Charter Communications
22773 1576 2910 111 Cox Communications, Inc.
4323 1536 991 349 Time Warner Telecom
30036 1430 261 750 Mediacom Communications Corp
7018 1281 9647 825 AT&T WorldNet Services
11492 1186 216 364 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 1815 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
15557 1157 2247 54 LDCOM NETWORKS
286 1058 853 198 KPNQwest Backbone AS
34984 681 188 175 Tellcom Iletisim Hizmetleri
31148 679 37 9 FreeNet ISP
12479 676 664 64 Uni2 Autonomous System
6830 658 2215 427 UPC Distribution Services
20940 634 205 499 Akamai Technologies European
8551 598 360 81 Bezeq International
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 1809 327 176 TVCABLE BOGOTA
28573 1790 1107 59 Types of queries are: POCs, o
6503 1543 418 66 AVANTEL, S.A.
8151 1463 3020 330 Uninet S.A. de C.V.
7303 1361 829 190 Telecom Argentina Stet-France
26615 903 697 32 Types of queries are: POCs, o
27947 689 74 99 Telconet S.A
11172 637 91 73 Alestra
22047 582 326 15 Types of queries are: POCs, o
3816 572 242 100 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 1317 958 13 TEDATA
24863 848 274 35 LINKdotNET AS number
16284 538 4 13 GST-N Autonomous System
6713 491 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
12258 197 28 62 YEBO-AS
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 161 666 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 3387 985 157 Windstream Communications Inc
18566 2091 382 179 Covad Communications
4766 1921 11105 693 Korea Telecom (KIX)
1785 1897 680 129 AppliedTheory Corporation
8402 1815 544 16 Corbina telecom
10620 1809 327 176 TVCABLE BOGOTA
17974 1802 503 63 PT TELEKOMUNIKASI INDONESIA
28573 1790 1107 59 Types of queries are: POCs, o
7545 1673 301 89 TPG Internet Pty Ltd
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 3387 3230 Windstream Communications Inc
18566 2091 1912 Covad Communications
8402 1815 1799 Corbina telecom
1785 1897 1768 AppliedTheory Corporation
17974 1802 1739 PT TELEKOMUNIKASI INDONESIA
28573 1790 1731 Types of queries are: POCs, o
10620 1809 1633 TVCABLE BOGOTA
7545 1673 1584 TPG Internet Pty Ltd
6503 1543 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 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 12.45.103.0/24 209 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
10.29.245.19/32 286 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
10.29.245.28/32 286 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
37.235.96.0/20 39392 SuperNetwork s.r.o.
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 /10:28 /11:81 /12:235
/13:460 /14:839 /15:1523 /16:12381 /17:6553 /18:10930
/19:21227 /20:30146 /21:30398 /22:41108 /23:38471 /24:216328
/25:92 /26:101 /27:112 /28:294 /29:253 /30:723
/31:20 /32:468
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3045 3387 Windstream Communications Inc
6389 2146 3428 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1792 1815 Corbina telecom
10620 1695 1809 TVCABLE BOGOTA
30036 1376 1430 Mediacom Communications Corp
6503 1300 1543 AVANTEL, S.A.
11492 1149 1186 Cable One
8452 1119 1317 TEDATA
15557 1104 1157 LDCOM NETWORKS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:539 2:770 4:18 6:3 8:404 12:2004
13:1 14:608 15:12 16:3 17:7 20:22
23:165 24:1779 27:1275 31:1011 32:119 33:2
34:2 36:8 37:363 38:801 39:4 40:120
41:3231 42:136 44:3 46:1510 47:3 49:389
50:540 52:13 54:7 55:12 56:3 57:39
58:966 59:519 60:281 61:1277 62:1035 63:2008
64:4207 65:2258 66:4532 67:2051 68:1338 69:3278
70:954 71:489 72:1853 73:1 74:2655 75:508
76:332 77:970 78:1014 79:507 80:1262 81:919
82:681 83:552 84:611 85:1217 86:766 87:937
88:358 89:1654 90:298 91:4770 92:530 93:1545
94:1480 95:1180 96:363 97:319 98:937 99:37
100:7 101:176 103:1010 106:104 107:187 108:234
109:1669 110:768 111:927 112:457 113:598 114:631
115:884 116:910 117:717 118:925 119:1232 120:358
121:822 122:1674 123:1097 124:1377 125:1267 128:562
129:197 130:257 131:596 132:174 133:22 134:246
135:62 136:212 137:177 138:355 139:160 140:493
141:246 142:388 143:411 144:520 145:131 146:501
147:306 148:806 149:302 150:160 151:176 152:464
153:172 154:9 155:448 156:216 157:382 158:179
159:523 160:339 161:259 162:353 163:190 164:572
165:412 166:573 167:464 168:820 169:128 170:860
171:127 172:4 173:1770 174:609 175:445 176:490
177:674 178:1344 180:1213 181:73 182:809 183:288
184:456 185:1 186:2223 187:1041 188:1196 189:1801
190:5560 192:6038 193:5579 194:4672 195:3666 196:1302
197:128 198:3672 199:4514 200:5804 201:1935 202:8548
203:8649 204:4353 205:2505 206:2779 207:2823 208:4079
209:3650 210:2784 211:1493 212:2067 213:1928 214:846
215:104 216:5138 217:1552 218:548 219:359 220:1238
221:557 222:330 223:335
End of report
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