Routing Table Report 08:00 +10GMT Tue 21 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 391764
Prefixes after maximum aggregation: 167839
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 192660
Total ASes present in the Internet Routing Table: 38006
Prefixes per ASN: 10.31
Origin-only ASes present in the Internet Routing Table: 32744
Origin ASes announcing only one prefix: 15533
Transit ASes present in the Internet Routing Table: 5262
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1127
Unregistered ASNs in the Routing Table: 191
Number of 32-bit ASNs allocated by the RIRs: 2285
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4782
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 250
Number of addresses announced to Internet: 2534602240
Equivalent to 151 /8s, 18 /16s and 246 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 165091
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92649
Total APNIC prefixes after maximum aggregation: 30320
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89958
Unique aggregates announced from the APNIC address blocks: 39222
APNIC Region origin ASes present in the Internet Routing Table: 4605
APNIC Prefixes per ASN: 19.53
APNIC Region origin ASes announcing only one prefix: 1253
APNIC Region transit ASes present in the Internet Routing Table: 703
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 636018688
Equivalent to 37 /8s, 232 /16s and 224 /24s
Percentage of available APNIC address space announced: 80.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 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: 147172
Total ARIN prefixes after maximum aggregation: 74847
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119318
Unique aggregates announced from the ARIN address blocks: 49484
ARIN Region origin ASes present in the Internet Routing Table: 14834
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5661
ARIN Region transit ASes present in the Internet Routing Table: 1500
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805310464
Equivalent to 48 /8s, 0 /16s and 16 /24s
Percentage of available ARIN address space announced: 64.0
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: 99628
Total RIPE prefixes after maximum aggregation: 52509
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91278
Unique aggregates announced from the RIPE address blocks: 56182
RIPE Region origin ASes present in the Internet Routing Table: 16308
RIPE Prefixes per ASN: 5.60
RIPE Region origin ASes announcing only one prefix: 8014
RIPE Region transit ASes present in the Internet Routing Table: 2587
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501076224
Equivalent to 29 /8s, 221 /16s and 209 /24s
Percentage of available RIPE address space announced: 80.7
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: 37929
Total LACNIC prefixes after maximum aggregation: 7985
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37743
Unique aggregates announced from the LACNIC address blocks: 19537
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 24.15
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 96660224
Equivalent to 5 /8s, 194 /16s and 235 /24s
Percentage of available LACNIC address space announced: 64.0
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: 8878
Total AfriNIC prefixes after maximum aggregation: 2089
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6923
Unique aggregates announced from the AfriNIC address blocks: 2105
AfriNIC Region origin ASes present in the Internet Routing Table: 513
AfriNIC Prefixes per ASN: 13.50
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 117
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31430400
Equivalent to 1 /8s, 223 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 46.8
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 1924 11104 677 Korea Telecom (KIX)
17974 1655 503 36 PT Telekomunikasi Indonesia
7545 1642 303 85 TPG Internet Pty Ltd
4755 1535 386 161 TATA Communications formerly
9829 1181 997 29 National Internet Backbone
9583 1126 84 483 Sify Limited
7552 1087 1062 11 Vietel Corporation
24560 1018 385 167 Bharti Airtel Ltd., Telemedia
4808 972 1946 274 CNCGROUP IP network China169
18101 951 131 156 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3442 1040 172 Windstream Communications Inc
6389 3439 3807 202 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1872 680 125 PaeTec Communications, Inc.
20115 1626 1550 630 Charter Communications
4323 1604 1059 380 tw telecom holdings, inc.
22773 1527 2910 110 Cox Communications Inc.
30036 1405 251 746 Mediacom Communications Corp
19262 1387 4703 397 Verizon Online LLC
7018 1313 7012 853 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1665 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1098 2184 60 NEUF CEGETEL (formerly LDCOM
34984 655 188 171 BILISIM TELEKOM
6830 644 1927 413 UPC Broadband
20940 607 197 472 Akamai Technologies European
12479 604 644 55 France Telecom Espana SA
8551 575 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 538 37 9 FreeNet ISP
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1745 323 173 Types of queries are: POCs, o
28573 1669 1085 65 Types of queries are: POCs, o
8151 1338 2988 344 Uninet S.A. de C.V.
7303 1264 758 183 Telecom Argentina S.A.
26615 814 668 34 Tim Celular S.A.
27947 638 67 108 Telconet S.A
11172 634 107 74 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
3816 555 238 91 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1235 958 13 TEDATA
24863 829 274 34 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 226 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 80 8 RAYA Telecom - Egypt
16637 160 664 85 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3442 1040 172 Windstream Communications Inc
6389 3439 3807 202 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1924 11104 677 Korea Telecom (KIX)
1785 1872 680 125 PaeTec Communications, Inc.
10620 1745 323 173 Types of queries are: POCs, o
28573 1669 1085 65 Types of queries are: POCs, o
8402 1665 480 15 Corbina telecom
17974 1655 503 36 PT Telekomunikasi Indonesia
7545 1642 303 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3439 3237 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1872 1747 PaeTec Communications, Inc.
8402 1665 1650 Corbina telecom
17974 1655 1619 PT Telekomunikasi Indonesia
28573 1669 1604 Types of queries are: POCs, o
10620 1745 1572 Types of queries are: POCs, o
7545 1642 1557 TPG Internet Pty Ltd
22773 1527 1417 Cox Communications Inc.
2118 1399 1386 EUnet/RELCOM Autonomous Syste
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
Complete listing at http://thyme.rand.apnic.net/london/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 /11:80 /12:232
/13:459 /14:811 /15:1471 /16:12091 /17:6192 /18:10297
/19:20465 /20:28201 /21:28964 /22:39352 /23:36717 /24:205821
/25:11 /26:21 /27:20 /28:152 /29:138 /30:67
/31:0 /32:143
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3081 3442 Windstream Communications Inc
6389 2108 3439 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1644 1665 Corbina telecom
10620 1642 1745 Types of queries are: POCs, o
30036 1356 1405 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1063 1872 PaeTec Communications, Inc.
8452 1045 1235 TEDATA
15557 1045 1098 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:499 2:674 4:14 5:1 6:3 8:385
12:1956 13:1 14:598 15:11 16:3 17:7
20:8 23:135 24:1728 27:1193 31:942 32:60
33:2 34:2 36:9 37:185 38:775 40:115
41:3131 42:96 44:3 46:1309 47:3 49:331
50:505 52:13 54:2 55:10 56:3 57:35
58:921 59:484 60:341 61:1086 62:965 63:2002
64:4107 65:2279 66:4444 67:2040 68:1173 69:3162
70:935 71:414 72:1793 74:2655 75:468 76:320
77:977 78:964 79:472 80:1213 81:878 82:627
83:523 84:584 85:1152 86:745 87:914 88:334
89:1550 90:282 91:4481 92:503 93:1353 94:1377
95:1075 96:414 97:312 98:805 99:38 100:4
101:146 103:798 106:64 107:157 108:168 109:1532
110:701 111:850 112:427 113:527 114:603 115:753
116:855 117:702 118:898 119:1243 120:362 121:656
122:1585 123:1077 124:1302 125:1320 128:501 129:182
130:208 131:586 132:165 133:21 134:224 135:62
136:213 137:179 138:288 139:143 140:465 141:262
142:376 143:398 144:510 145:69 146:478 147:237
148:713 149:301 150:156 151:198 152:445 153:170
154:6 155:415 156:210 157:336 158:160 159:439
160:320 161:228 162:340 163:177 164:526 165:392
166:558 167:457 168:757 169:145 170:838 171:115
172:4 173:1722 174:584 175:422 176:503 177:496
178:1275 180:1181 181:67 182:717 183:279 184:430
185:1 186:1951 187:860 188:1080 189:1179 190:5497
192:5941 193:5535 194:4338 195:3391 196:1262 197:165
198:3568 199:4352 200:5602 201:1733 202:8192 203:8542
204:4287 205:2413 206:2659 207:2720 208:4066 209:3532
210:2688 211:1450 212:2021 213:1845 214:842 215:88
216:5003 217:1497 218:535 219:335 220:1220 221:544
222:297 223:302
End of report