The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Wednesday, December 18, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Thu 19 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 470910
Prefixes after maximum aggregation: 188840
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 235845
Total ASes present in the Internet Routing Table: 45619
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35535
Origin ASes announcing only one prefix: 16273
Transit ASes present in the Internet Routing Table: 5774
Transit-only ASes present in the Internet Routing Table: 153
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 29
Max AS path prepend of ASN ( 55644) 25
Prefixes from unregistered ASNs in the Routing Table: 1183
Unregistered ASNs in the Routing Table: 332
Number of 32-bit ASNs allocated by the RIRs: 5534
Number of 32-bit ASNs visible in the Routing Table: 4310
Prefixes from 32-bit ASNs in the Routing Table: 13490
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1426
Number of addresses announced to Internet: 2659206140
Equivalent to 158 /8s, 128 /16s and 67 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163746

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110511
Total APNIC prefixes after maximum aggregation: 33499
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112801
Unique aggregates announced from the APNIC address blocks: 47909
APNIC Region origin ASes present in the Internet Routing Table: 4840
APNIC Prefixes per ASN: 23.31
APNIC Region origin ASes announcing only one prefix: 1211
APNIC Region transit ASes present in the Internet Routing Table: 820
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 796
Number of APNIC addresses announced to Internet: 729044732
Equivalent to 43 /8s, 116 /16s and 86 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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: 162187
Total ARIN prefixes after maximum aggregation: 81438
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163020
Unique aggregates announced from the ARIN address blocks: 75839
ARIN Region origin ASes present in the Internet Routing Table: 15886
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 6004
ARIN Region transit ASes present in the Internet Routing Table: 1628
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 47
Number of ARIN addresses announced to Internet: 1074635008
Equivalent to 64 /8s, 13 /16s and 161 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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: 119290
Total RIPE prefixes after maximum aggregation: 61226
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123085
Unique aggregates announced from the RIPE address blocks: 79226
RIPE Region origin ASes present in the Internet Routing Table: 17544
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8301
RIPE Region transit ASes present in the Internet Routing Table: 2749
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2526
Number of RIPE addresses announced to Internet: 655687168
Equivalent to 39 /8s, 20 /16s and 254 /24s
Percentage of available RIPE address space announced: 95.3

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, 61952-62463, 196608-200191
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: 52783
Total LACNIC prefixes after maximum aggregation: 9839
LACNIC Deaggregation factor: 5.36
Prefixes being announced from the LACNIC address blocks: 58153
Unique aggregates announced from the LACNIC address blocks: 27522
LACNIC Region origin ASes present in the Internet Routing Table: 2049
LACNIC Prefixes per ASN: 28.38
LACNIC Region origin ASes announcing only one prefix: 549
LACNIC Region transit ASes present in the Internet Routing Table: 383
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 933
Number of LACNIC addresses announced to Internet: 146572288
Equivalent to 8 /8s, 188 /16s and 132 /24s
Percentage of available LACNIC address space announced: 87.4

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 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: 11766
Total AfriNIC prefixes after maximum aggregation: 2593
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12425
Unique aggregates announced from the AfriNIC address blocks: 4233
AfriNIC Region origin ASes present in the Internet Routing Table: 698
AfriNIC Prefixes per ASN: 17.80
AfriNIC Region origin ASes announcing only one prefix: 208
AfriNIC Region transit ASes present in the Internet Routing Table: 140
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48569344
Equivalent to 2 /8s, 229 /16s and 28 /24s
Percentage of available AfriNIC address space announced: 48.2

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
17974 2730 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2155 11550 652 Korea Telecom (KIX)
7545 2108 319 111 TPG Internet Pty Ltd
4755 1802 392 191 TATA Communications formerly
9829 1555 1251 42 BSNL National Internet Backbo
9583 1318 103 545 Sify Limited
9498 1229 309 72 BHARTI Airtel Ltd.
7552 1174 1080 13 Vietel Corporation
24560 1098 382 167 Bharti Airtel Ltd., Telemedia
4808 1044 1946 303 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3028 3688 53 BellSouth.net Inc.
22773 2303 2939 139 Cox Communications, Inc.
1785 2146 686 131 PaeTec Communications, Inc.
18566 2049 379 178 MegaPath Corporation
20115 1680 1661 596 Charter Communications
4323 1641 1097 414 Time Warner Telecom
701 1503 11144 776 MCI Communications Services,
30036 1375 309 574 Mediacom Communications Corp
7018 1310 17746 855 AT&T WorldNet Services
6983 1295 756 580 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1940 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1209 460 909 Akamai Technologies European
31148 1011 45 19 FreeNet ISP
13188 898 99 42 TOV "Bank-Inform"
6849 860 363 39 JSC UKRTELECOM,
8551 845 370 38 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 682 798 53 Uni2 Autonomous System
35228 549 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3423 1837 90 NET Servicos de Comunicao S.A
10620 2690 435 209 Telmex Colombia S.A.
18881 1778 908 20 Global Village Telecom
7303 1739 1163 226 Telecom Argentina Stet-France
8151 1356 2855 424 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 831 94 91 Telconet S.A
6147 789 373 27 Telefonica Del Peru
6503 788 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1819 112 5 Sudanese Mobile Telephone (ZA
24863 894 338 26 LINKdotNET AS number
6713 598 653 27 Itissalat Al-MAGHRIB
8452 420 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
36992 246 525 29 Etisalat MISR
29571 238 21 14 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3423 1837 90 NET Servicos de Comunicao S.A
6389 3028 3688 53 BellSouth.net Inc.
17974 2730 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2690 435 209 Telmex Colombia S.A.
22773 2303 2939 139 Cox Communications, Inc.
4766 2155 11550 652 Korea Telecom (KIX)
1785 2146 686 131 PaeTec Communications, Inc.
7545 2108 319 111 TPG Internet Pty Ltd
18566 2049 379 178 MegaPath Corporation
8402 1940 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3028 2975 BellSouth.net Inc.
17974 2730 2642 PT TELEKOMUNIKASI INDONESIA
10620 2690 2481 Telmex Colombia S.A.
22773 2303 2164 Cox Communications, Inc.
1785 2146 2015 PaeTec Communications, Inc.
7545 2108 1997 TPG Internet Pty Ltd
8402 1940 1924 OJSC "Vimpelcom"
18566 2049 1871 MegaPath Corporation
36998 1819 1814 Sudanese Mobile Telephone (ZA
18881 1778 1758 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
65456 PRIVATE 5.109.32.0/19 23456 32-bit ASN transitio

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:252
/13:473 /14:940 /15:1644 /16:12867 /17:6748 /18:11194
/19:23091 /20:32897 /21:35738 /22:50354 /23:43824 /24:250514
/25:46 /26:32 /27:49 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2004 2049 MegaPath Corporation
36998 1786 1819 Sudanese Mobile Telephone (ZA
6389 1699 3028 BellSouth.net Inc.
8402 1641 1940 OJSC "Vimpelcom"
22773 1553 2303 Cox Communications, Inc.
30036 1216 1375 Mediacom Communications Corp
1785 1163 2146 PaeTec Communications, Inc.
11492 1148 1185 Cable One
6983 1037 1295 ITC^Deltacom
22561 977 1252 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:915 2:869 3:3 4:16 5:787 6:21
8:615 12:1884 13:3 14:872 15:9 16:3
17:19 18:19 20:36 23:616 24:1754 27:1713
31:1497 32:46 33:2 34:5 36:105 37:1916
38:918 39:3 40:182 41:3208 42:236 44:14
46:2081 47:10 49:702 50:858 52:12 54:44
55:5 56:4 57:26 58:1095 59:587 60:369
61:1473 62:1223 63:1976 64:4395 65:2330 66:4137
67:2123 68:1086 69:3292 70:908 71:508 72:2024
74:2577 75:322 76:305 77:1208 78:1027 79:674
80:1274 81:1084 82:646 83:754 84:625 85:1265
86:384 87:1014 88:520 89:1567 90:151 91:5723
92:624 93:1602 94:2098 95:1493 96:519 97:351
98:1080 99:41 100:32 101:447 103:3836 105:532
106:144 107:248 108:544 109:2035 110:962 111:1133
112:587 113:812 114:749 115:1023 116:1008 117:809
118:1235 119:1271 120:369 121:748 122:1846 123:1259
124:1349 125:1477 128:608 129:221 130:341 131:661
132:349 133:159 134:298 135:73 136:276 137:247
138:352 139:168 140:177 141:344 142:539 143:401
144:494 145:90 146:541 147:428 148:736 149:359
150:153 151:487 152:414 153:207 154:51 155:521
156:307 157:368 158:284 159:698 160:359 161:457
162:948 163:207 164:624 165:578 166:281 167:640
168:1036 169:122 170:1148 171:185 172:12 173:1729
174:672 175:538 176:1325 177:2576 178:1882 179:344
180:1627 181:900 182:1420 183:476 184:622 185:1126
186:2669 187:1473 188:1948 189:1244 190:7290 192:6987
193:5459 194:4025 195:3379 196:1347 197:1074 198:4750
199:5489 200:6047 201:2542 202:8905 203:8974 204:4459
205:2614 206:2782 207:2754 208:3959 209:3697 210:2973
211:1608 212:2182 213:1970 214:877 215:84 216:5399
217:1719 218:623 219:314 220:1268 221:587 222:329
223:591

End of report
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